| Acronym |   | Definition | Topics | External Links |  | 
    
    
      | R | 
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      Reminder | 
      
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      | R | 
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      Ring | 
      
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      | RA | 
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      Rate Adapter (0, 1, 2) | 
      
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      | RA | 
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      Read Audit | 
      
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      | RA | 
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      Recognition Arrangement | 
      
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      | RA | 
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      Registration Authority | 
      
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      | RAB | 
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      RAID Advisory Board | 
      
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      | RABID | 
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      Rebellion Against Big Irrepressible Dweebs | 
      
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      | RACE | 
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      Research and development of Advanced Communication in Europe | 
      
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      | RACI | 
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      Recommends, Approves, Consulted, and Informed | 
      
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      | RACI | 
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      Responsible, Accountable, Consulted, and Informed | 
      
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      | RACI | 
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      Responsible, Assists, Consulted, and Informed | 
      
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      | RAD | 
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      Rapid Application Development | 
      
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      | RADAR | 
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      RAdio Detection And Ranging | 
      
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      | RADD | 
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      Rapid Application Development and Deployment | 
      
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      | RADF | 
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      Reversing Automatic Document Feeder | 
      
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      | RADIUS | 
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      Remote Authentication Dial-In User Service | 
      
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      | RADSL | 
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      Rate Adaptive Digital Subscriber Line | 
      
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      | RAF | 
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      Record Address File | 
      
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      | RAG | 
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      Registration and Advisory Group | 
      
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      | RAI | 
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      Remote Alarm Signal | 
      
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      | RAID | 
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      Redundant Array of Independent Disks / Redundant Array of Inexpensive Disks | 
      
         
         
         
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      | RAM | 
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      Random Access Memory | 
      
         
         
         
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      | RAM | 
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      Responsibility Assignment Matrix | 
      
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      | RAMDAC | 
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      Random Access Memory Digital To Analog Converter | 
      
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      | RAML | 
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      RESTful API Modeling Language | 
      
         
         
         
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      | RAMP | 
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      Reliability, Availability, Maintainability Program | 
      
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      | RAN | 
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      Radio Access Network | 
      
         
         
         
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      | RAND | 
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      Reasonable And Non-Discriminatory (licensing terms) | 
      
         
         
         
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      | RAND | 
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      Rural Area Network Design | 
      
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      | RANDRF | 
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      Reasonable And Non-Discriminatory Royalty Free (often as RAND-RF) | 
      
         
         
         
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      | RAND-RF | 
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      Reasonable And Non-Discriminatory Royalty Free | 
      
         
         
         
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      | RANDZ | 
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      Reasonable And Non-Discriminatory with Zero royalty (often as RAND-Z) | 
      
         
         
         
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      | RAND-Z | 
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      Reasonable And Non-Discriminatory with Zero royalty | 
      
         
         
         
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      | RAO | 
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      Regional Accounting Office | 
      
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      | RAO | 
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      Remote Automation Objects | 
      
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      | RAO | 
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      Revenue Accounting Office | 
      
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      | RAP | 
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      Route Access Protocol | 
      
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      | RAPIDS | 
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      Real-time Automated Personnel Identification System | 
      
         
         
         
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      | RAR | 
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      Return Address Register | 
      
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      | RARE | 
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      Reseaux Associes pour la Recherche Europeenne (Associated Network for European Research) | 
      
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      | RARP | 
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      Reverse Address Resolution Protocol | 
      
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      | RAS | 
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      Remote Access Server / Remote Access Service | 
      
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      | RASC | 
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      Residence Account Service Center | 
      
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      | RASP | 
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      Remote Antenna Signal Processor | 
      
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      | RAT | 
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      [Apache] Release Audit Tool | 
      
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      | RAT | 
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      Remote Access Trojan | 
      
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      | RAT | 
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      Remote Administration Tool | 
      
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      | RAVE | 
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      Rendering Acceleration Virtual Engine | 
      
         
         
         
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      | RAW | 
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      Read-After-Write | 
      
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      | RBAC | 
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      Role Based Access Control | 
      
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      | RBC | 
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      Reduced Block Commands | 
      
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      | RBDS | 
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      Radio Broadcast Data System | 
      
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      | RBF | 
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      Radial Basis Function (regression modeling) | 
      
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      | RBG | 
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      Random Bit Generator | 
      
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      | RBG | 
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      Realtime Business Group | 
      
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      | RBHC | 
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      Regional Bell Holding Company | 
      
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      | RBL | 
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      Realtime Blackhole List | 
      
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      | RBOC | 
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      Regional Bell Operating Company | 
      
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      | RBOR | 
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      Request Basic Output Report | 
      
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      | RBS | 
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      Robbed Bit Signaling | 
      
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      | RC | 
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      Read Committed (isolation level) | 
      
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      | RC | 
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      Regional Center | 
      
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      | RC | 
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      Remote Control | 
      
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      | RC | 
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      Resistance - Capacitance | 
      
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      | RC | 
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      Return Code | 
      
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      | RC | 
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      Rivest Cipher / Rivest's Cipher / Ron's Code | 
      
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      | RC | 
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      Routing Control | 
      
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      | RC2 | 
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      Rivest Cipher version 2 / Rivest's Cipher 2 | 
      
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      | RC4 | 
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      Rivest Cipher version 4 / Rivest's Cipher 4 | 
      
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      | RC5 | 
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      Rivest Cipher version 5 / Rivest's Cipher 5 | 
      
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      | RC6 | 
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      Rivest Cipher version 6 / Rivest's Cipher 6 | 
      
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      | RCAC | 
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      Remote Computer Access Communications service | 
      
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      | RCC | 
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      Radio Common Carrier | 
      
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      | RCC | 
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      Remote Cluster Controller | 
      
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      | RCD | 
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      Receiver-Carrier Detector | 
      
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      | RCF | 
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      Remote Call Forwarding | 
      
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      | RCLDN | 
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      Retrieval of Calling Line Directory Number | 
      
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      | RCM | 
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      Remote Carrier Module | 
      
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      | RCO | 
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      Reusable Content Objects | 
      
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      | RCS | 
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      Records Control Schedules | 
      
         
         
         
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      | RCS | 
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      Reference Color Space | 
      
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      | RCS | 
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      Remote Computing Service | 
      
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      | RCS | 
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      Revision Control System | 
      
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      | RCT | 
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      Resource Control Table | 
      
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      | RCU | 
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      Radio Channel Unit | 
      
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      | RCV | 
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      Receiver | 
      
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      | RCW | 
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      Runtime Callable Wrapper | 
      
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      | RD | 
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      (modem) Receive Data | 
      
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      | RD | 
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      Remote Desktop | 
      
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      | RD | 
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      Remove Directory (DOS) | 
      
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      | RD | 
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      Route Descriptor | 
      
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      | RDA | 
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      Remote Data Access / Remote Database Access | 
      
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      | RDAU | 
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      Remote Data Access Unit | 
      
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      | RDB | 
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      Relational DataBase | 
      
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      | RDBA | 
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      Remote DataBase Access | 
      
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      | RDBMS | 
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      Relational DataBase Management System / Remote DataBase Management System | 
      
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      | RDC | 
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      Regional Data Center | 
      
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      | RDC | 
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      Remote Data Concentrator | 
      
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      | RDES | 
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      Remote Data Entry System | 
      
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      | RDF | 
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      Rate Decrease Factor | 
      
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      | RDF | 
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      Resource Definition Framework | 
      
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      | RDF | 
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      Resource Description Framework | 
      
         
         
         
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      | RDFS | 
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      Resource Description Framework Schema (sometimes as RDF/S, RDF-S, or RDF(S)) | 
      
         
         
         
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      | RDI | 
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      Remote Defect Identification / Remote Defect Indicator / Remote Defect Indication | 
      
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      | RDIS | 
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      Rede Digital com Integracao de Servicos | 
      
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      | RDL | 
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      Relational Database Language | 
      
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      | RDLSQL | 
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      Relational Database Language Structured Query Language | 
      
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      | RDL-SQL | 
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      Relational Database Language - Structured Query Language | 
      
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      | RDMA | 
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      Remote Direct Memory Access | 
      
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      | RDN | 
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      Relative Distinguished Name | 
      
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      | RDO | 
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      Remote Data Objects | 
      
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      | RDO | 
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      Resource Definition Online | 
      
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      | RDP | 
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      Reliable Datagram Protocol | 
      
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      | RDP | 
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      Remote Desktop Protocol | 
      
         
         
         
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      | RDRAM | 
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      Rambus Dynamic Random Access Memory | 
      
         
         
         
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      | RDS | 
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      (Amazon) Relational Database Service | 
      
         
         
         
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      | RDS | 
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      Radio Digital System | 
      
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      | RDS | 
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      Remote Data Scope | 
      
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      | RDS | 
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      Remote Data Services | 
      
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      | RDSI | 
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      Red Digital de Servicios Integrados | 
      
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      | RDSN | 
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      Region Digital Switched Network | 
      
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      | RDT | 
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      Radio Digital Terminal | 
      
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      | RDT | 
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      Recall Dial Tone | 
      
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      | RDT | 
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      Referenced Data Transfer | 
      
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      | RDT | 
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      Remote Digital Terminal | 
      
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      | RDT | 
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      Restricted Data Transmissions | 
      
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      | RE | 
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      Reference Equivalent | 
      
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      | RE | 
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      Routing Element | 
      
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      | REBI | 
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      Reliability of Electronic Business Information | 
      
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      | REC | 
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      RARE Executive Committee | 
      
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      | REC | 
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      Record (as in tape Record-ing) | 
      
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      | REC | 
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      Regional Engineering Center | 
      
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      | RED | 
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      Random Early Detection | 
      
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      | REJ | 
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      Reject | 
      
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      | REL | 
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      Rights Expression Language | 
      
         
         
         
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      | REM | 
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      Remark | 
      
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      | REM | 
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      Remote Equipment Module | 
      
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      | REM | 
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      Ring Error Monitor | 
      
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      | REMF | 
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      Reverse ElectroMagnetic Force | 
      
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      | REMOBS | 
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      REMote OBservation System | 
      
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      | REN | 
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      Rename (DOS) | 
      
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      | REN | 
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      Ringer Equivalence Number | 
      
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      | REP | 
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      Repeater Expansion Port | 
      
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      | RES | 
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      Reserved | 
      
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      | RESCU | 
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      Remote Emergency Satellite ResCue Unit | 
      
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      | REST | 
        | 
      Representational State Transfer | 
      
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      | RESURRECT | 
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      REstoring SURvivability by REConstructing Trauma | 
      
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      | RET | 
        | 
      Resolution Enhancement Technology (usually as REt) | 
      
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      | RETLA | 
       | 
      Really Extended Three Letter Acronym | 
      
         
         
         
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      | REU | 
        | 
      Research Experiences for Undergraduates | 
      
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      | REV | 
       | 
      Revenue | 
      
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      | REV | 
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      Revision | 
      
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      | REX | 
        | 
      REST-Enabled XHTML | 
      
         
         
         
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      | REXEC | 
       | 
      Remote Execution | 
      
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      | REXX | 
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      Restructured EXtended eXecutor (language) | 
      
         
         
         
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      | RF | 
       | 
      Radio Frequency | 
      
         
         
         
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      | RF | 
       | 
      Remote File (TCP/UDP Port 34) | 
      
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      | RF | 
        | 
      Resume Flag | 
      
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      | RF/DC | 
       | 
      Radio Frequency / Data Communication | 
      
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      | RF/ID | 
       | 
      Radio Frequency Identification | 
      
         
         
         
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      | RFA | 
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      Remote File Access | 
      
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      | RFC | 
       | 
      [Internet] Request For Comment | 
      
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      | RFC | 
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      Radio Frequency Choke | 
      
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      | RFD | 
       | 
      Regional Frequency Divider | 
      
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      | RFD | 
       | 
      Request For Discussion | 
      
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      | RFDC | 
       | 
      Radio Frequency Data Communication | 
      
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      | RFI | 
       | 
      Radio Frequency Interference | 
      
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      | RFI | 
       | 
      Remote File Inclusion | 
      
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      | RFI | 
       | 
      Request For Information | 
      
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      | RFID | 
       | 
      Radio Frequency Identification | 
      
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      | RFP | 
       | 
      Request For Proposal | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RFQ | 
       | 
      Request For Quotation | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RFS | 
       | 
      Remote File Server / Remote File System | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RFT | 
        | 
      Request For Technology | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RFT | 
       | 
      Revisable Form Text / Revisable Format Text | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RFTDCA | 
       | 
      Revisable Form Text Document Content Architecture | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RG | 
       | 
      Radio Government | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RG | 
       | 
      Rapporteur Group | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RGB | 
       | 
      Red Green Blue | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RGM | 
       | 
      Reversible Grammar Machine | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RH | 
       | 
      Relative Humidity | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RH | 
       | 
      Request Header | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RH | 
       | 
      Response Header | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RHEL | 
        | 
      Red Hat Enterprise Linux | 
      
       | 
        | 
       | 
       | 
       | 
    
    
      | RHN | 
        | 
      Red Hat Network | 
      
       | 
        | 
       | 
       | 
       | 
    
    
      | RHOB | 
       | 
      Relevant Hierarchical Operational Binding | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RI | 
       | 
      Reference Implementation | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RI | 
       | 
      Referential Integrity | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RI | 
       | 
      Rename Inhibit | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RI | 
       | 
      Ring In (MAU Connector) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RI | 
       | 
      Ring Indication / Ring Indicator (signal) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RI | 
       | 
      Routing Indicator | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RI | 
       | 
      Routing Information | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RIA | 
       | 
      Rich Internet Application | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIAA | 
        | 
      Recording Industry Association of America | 
      
       | 
        | 
       | 
       | 
       | 
    
    
      | RIB | 
       | 
      Routing Information Base | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RICE | 
        | 
      Reconnaissance, Infection, Command and control, Exfiltration | 
      
         
         
         
       | 
       | 
       | 
       | 
       | 
    
    
      | RID | 
       | 
      Remote Isolation Device | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIF | 
       | 
      Reduction In Force | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIF | 
       | 
      Routing Information Field | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIF | 
        | 
      Rule Interchange Format | 
      
         
         
         
       | 
        | 
       | 
        | 
       | 
    
    
      | RII | 
       | 
      Routing Information Indicator | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIM | 
       | 
      Records and Information Management | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIMM | 
        | 
      Rambus In-line Memory Module | 
      
       | 
       | 
       | 
        | 
       | 
    
    
      | RIN | 
       | 
      Relative Intensity Noise | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIN | 
       | 
      Resource Indentification Number | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIP | 
       | 
      Raster Image Processor | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIP | 
        | 
      Remote Imaging Protocol | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIP | 
        | 
      Router Information Protocol / Routing Information Protocol | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIPE | 
        | 
      Réseaux IP Européens (European continental TCP/IP network) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIR | 
       | 
      Regional Internet Registry | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RIS | 
        | 
      Remote Installation Services | 
      
         
         
         
       | 
        | 
       | 
        | 
       | 
    
    
      | RISC | 
       | 
      Reduced Instruction Set Computer / Reduced Instruction Set Computing | 
      
         
         
         
       | 
       | 
        | 
        | 
       | 
    
    
      | RISC | 
        | 
      Repository for Individuals of Special Concern | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RISC | 
        | 
      Responsible Internet Service Companies (Canadian organization) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RISD | 
       | 
      Reference Information Systems Development | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RISE | 
       | 
      Retrieval and Interchange of Standards in Europe | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RISLU | 
       | 
      Remote Integrated Services Line Unit | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RJ | 
       | 
      Registered Jack (as in RJ-11 and RJ-45) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RJ | 
       | 
      Reject | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RJE | 
       | 
      Remote Job Entry | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RKE | 
       | 
      Remote Keyless Entry | 
      
         
         
         
       | 
       | 
       | 
        | 
       | 
    
    
      | RKS | 
       | 
      Remote Keyless System | 
      
         
         
         
       | 
       | 
       | 
        | 
       | 
    
    
      | RL | 
       | 
      Real Life | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLC | 
       | 
      Radio Link Control | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLCM | 
       | 
      Remote Line Concentrating Module | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLE | 
        | 
      [MIT] Research Laboratory of Electronics | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLE | 
       | 
      Run Length Encoded (graphic format) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLL | 
       | 
      Run Length Limited | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLM | 
       | 
      Remote Line Module | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLOGIN | 
       | 
      Remote Login | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLP | 
        | 
      Radio Link Protocol | 
      
       | 
       | 
       | 
        | 
       | 
    
    
      | RLP | 
       | 
      Resource Location Protocol (TCP/UDP Port 39) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLS | 
       | 
      Record Level Sharing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLSD | 
       | 
      Received Line Signal Detector | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RLT | 
       | 
      Remote Line Test | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RM | 
       | 
      Records Management | 
      
         
         
         
       | 
       | 
       | 
        | 
       | 
    
    
      | RM | 
       | 
      Reference Model | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RM | 
       | 
      Resource Management | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMA | 
       | 
      Return Material Authorization | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RMA | 
       | 
      Return Merchandise Authorization | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RMAN | 
        | 
      (Oracle) Recovery Manager | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMAS | 
       | 
      Remote Memory Administration System | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMATS | 
       | 
      Remote Maintenance And Testing System | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMDIR | 
       | 
      Remove Directory (DOS) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMDM | 
       | 
      Reference Model of Data Management | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMF | 
       | 
      Remote Management Facility | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMI | 
        | 
      [Java] Remote Method Invocation | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMON | 
        | 
      Remote Monitor standard / Remote network MONitoring | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMONMIB | 
       | 
      Remote network MONitoring Management Information Base | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMP | 
       | 
      Remote Maintenance Protocol | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMR | 
       | 
      Remote Message Register | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RMS | 
        | 
      Rights Management Services | 
      
         
         
         
       | 
        | 
       | 
        | 
       | 
    
    
      | RMS | 
       | 
      Root Mean Squared | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RN | 
       | 
      Receipt Notification | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RN | 
       | 
      Reference Noise | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RNE | 
       | 
      Reseau National d'Essal (National Network for Testing) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RNG | 
       | 
      Random Number Generator | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RNOC | 
       | 
      Regional Network Operations Center | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RNR | 
       | 
      Receiver Not Ready | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RO | 
       | 
      Read Only | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RO | 
       | 
      Receive Only | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RO | 
       | 
      Remote Operations | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RO | 
       | 
      Ring Out (MAU connector) | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | ROA | 
       | 
      Return On Assets | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | ROAC | 
       | 
      Report Origin Authentication Check | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROADM | 
       | 
      Reconfigurable Optical Add-Drop Multiplexer | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROB | 
       | 
      Remote Order Buffer | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROB | 
        | 
      Rules of Behavior | 
      
         
         
         
       | 
       | 
       | 
       | 
       | 
    
    
      | ROBIN | 
        | 
      Robustness of Biologically-Inspired Networks (usually as RoBIN) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROC | 
       | 
      Regional Operating Company | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROCIE | 
        | 
      Riverside/Orange County/Inland Empire (Net) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROER | 
       | 
      Remote Operations ERror | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROFL | 
       | 
      Rolling On the Floor Laughing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROFLASTC | 
       | 
      Rolling On the Floor Laughing And Scaring The Cat | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROFLGO | 
       | 
      Rolling On the Floor Laughing Guts Out | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROFLMAO | 
       | 
      Rolling On the Floor Laughing My Ass Off | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROFLMAOPMP | 
       | 
      Rolling On The Floor Laughing My Ass Off Peeing My Pants | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROH | 
       | 
      Receiver Off-Hook | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROI | 
       | 
      Return-On-Investment | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROIV | 
       | 
      Remote Operations InVoke | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROKSO | 
        | 
      (The) Register Of Known Spam Operations | 
      
       | 
        | 
       | 
       | 
       | 
    
    
      | ROLAP | 
       | 
      Relational On-Line Analytical Processing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROLC | 
       | 
      Routing Over Large Clouds | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROM | 
       | 
      Read Only Memory | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROP | 
       | 
      Raster OPerations | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROP | 
       | 
      Return Oriented Programming | 
      
         
         
         
       | 
        | 
       | 
        | 
       | 
    
    
      | ROPM | 
       | 
      Remote Operations Protocol Machine | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | ROR | 
       | 
      Resources of a Resource | 
      
       | 
        | 
       | 
        | 
        | 
    
    
      | RORE | 
       | 
      Remote Operations Return Error | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RORJ | 
       | 
      Remote Operations ReJect | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RORS | 
       | 
      Remote Operations ReSponse | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROS | 
       | 
      Read Only Storage | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROS | 
       | 
      Read-Only Store | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROS | 
       | 
      Remote Operations Service | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROSE | 
       | 
      Remote Operations Service Element | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROTFL | 
       | 
      Rolling On The Floor Laughing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROTL | 
       | 
      Remote Office Test Line | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROW | 
       | 
      Rest Of the World / Rest Of World | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROWI | 
       | 
      Return On Web Investment | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | ROYGBIV | 
       | 
      Red Orange Yellow Green Blue Indigo Violet (colors, in order, of a rainbow) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RP | 
       | 
      Roleplay | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPC | 
       | 
      Registered Protective Circuitry | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPC | 
       | 
      Remote Procedure Call | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPDFT | 
       | 
      Robustly Path Delay Fault Testable | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPE | 
       | 
      Remote Peripheral Equipment | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPG | 
       | 
      Remote Password Generator | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPG | 
       | 
      Report Program Generator (programming language) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPG | 
       | 
      Role Playing Game | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPI | 
        | 
      Rockwell Protocol Interface | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPL | 
       | 
      Remote Procedure Load / Remote Program Load | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPL | 
       | 
      Request Parameter List | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RPM | 
       | 
      Relentless Pursuit of Magnificence | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RPM | 
       | 
      Remote Process Management | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPM | 
       | 
      Reverse-Path Multicasting | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPM | 
       | 
      Revolutions Per Minute (usually rpm) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPM | 
       | 
      Rotations Per Minute | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPN | 
       | 
      Reverse Polish Notation | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPO | 
       | 
      Recovery Point Objective | 
      
       | 
       | 
       | 
        | 
       | 
    
    
      | RPOA | 
       | 
      Recognized Private Operating Agency | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPOS | 
       | 
      Retail Point Of Sale | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPQ | 
       | 
      Request for Price Quotation | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPS | 
       | 
      Redundant Power Supply | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPS | 
       | 
      Relational Position Sensing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPS | 
       | 
      Ring Parameter Service | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RPS | 
       | 
      Rotational Position Sensing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RQMA | 
       | 
      Remote Queueing Multiple Access | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RQS | 
       | 
      Rate Quote System | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RQSM | 
       | 
      Regional Quality Service Management | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RQT | 
       | 
      Reliability Quality Test | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RR | 
       | 
      Ready to Receive | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RR | 
       | 
      Receiver Ready | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RR | 
        | 
      Repeatable Read (isolation level) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RR | 
       | 
      Round Robin | 
      
         
         
         
       | 
       | 
       | 
       | 
       | 
    
    
      | RRAS | 
        | 
      Routing and Remote Access Services | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RRG | 
        | 
      Rebels' Riting Guild | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RRO | 
       | 
      Reports Receiving Office | 
      
       | 
       | 
       | 
       | 
        | 
    
    
      | RRT | 
       | 
      Resource Resolution Table | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RRT | 
       | 
      Reverse Recovery Time | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
       | 
      Recommended Standard | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
       | 
      Record Separator (ASCII) | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
       | 
      Remote Sensing | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
       | 
      Remote Single-layer | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
       | 
      Resume Session | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
       | 
      Ring Station | 
      
       | 
       | 
       | 
       | 
       | 
    
    
      | RS | 
        | 
      RISC System (as in IBM RS/6000) | 
      
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      | RSA | 
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      Reference System Architecture | 
      
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      | RSA | 
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      Repair Service Attendant | 
      
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      | RSA | 
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      Rivest-Shamir-Adleman (encryption algorithm) | 
      
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      | RSAC | 
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      Recreational Software Advisory Council | 
      
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      | RSACI | 
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      Recreational Software Advisory Council on the Internet (usually as RSACi) | 
      
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      | RSAPPDU | 
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      ReSynchronize Acknowledge Presentation Protocol Data Unit | 
      
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      | RSA-PPDU | 
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      ReSynchronize Acknowledge Presentation Protocol Data Unit | 
      
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      | RSAT | 
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      Reliability and System Architecture Testing | 
      
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      | RSB | 
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      Repair Service Bureau | 
      
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      | RSC | 
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      Remote Switching Center | 
      
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      | RSC | 
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      Residence Service Center | 
      
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      | RSCS | 
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      Remote Source Control System / Remote Spooling and Control Subsystem / Remote Spooling Communications Subsystem | 
      
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      | RSDP | 
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      Root System Description Pointer (structure) | 
      
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      | RSE | 
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      Remote Single-layer Embedded | 
      
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      | RSE | 
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      Removable Storage Elements | 
      
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      | RSFG | 
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      Route Server Functional Group (ATM Forum) | 
      
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      | RSH | 
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      Remote SHell | 
      
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      | RSI | 
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      Repetitive Strain Injury | 
      
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      | RSL | 
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      Received Signal Level | 
      
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      | RSL | 
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      Recommended Spare-Parts List / Recommended Spares List | 
      
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      | RSL | 
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      Remote Ship List | 
      
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      | RSLE | 
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      Remote Subscriber Line Equipment | 
      
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      | RSLM | 
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      Remote Subscriber Line Module | 
      
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      | RSM | 
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      Remote Switching Module | 
      
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      | RSN | 
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      Real Soon Now | 
      
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      | RSO | 
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      Regional Standards Organization | 
      
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      | RSOP | 
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      Resultant Set of Policy | 
      
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      | RSPPDU | 
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      ReSynchronize Presentation Protocol Data Unit | 
      
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      | RS-PPDU | 
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      ReSynchronize Presentation Protocol Data Unit | 
      
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      | RSPX | 
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      Remote Sequenced Packet eXchange | 
      
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      | RSRB | 
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      Remote Source Route Bridging | 
      
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      | RSS | 
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      RDF Site Summary | 
      
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      | RSS | 
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      Really Simple Syndication | 
      
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      | RSS | 
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      Reception Support Statement | 
      
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      | RSS | 
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      Remote Switching System | 
      
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      | RSS | 
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      Rich Site Summary | 
      
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      | RSSB | 
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      Reverse Subtract and Skip if Borrow (instruction) | 
      
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      | RSTS/E | 
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      Resource Sharing Time Sharing / Extended | 
      
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      | RSTS/E | 
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      Resource System Time Sharing / Environment | 
      
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      | RSTSE | 
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      Resource System Time Sharing Enhanced | 
      
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      | RSU | 
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      Remote Switching Unit | 
      
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      | RSVP | 
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      (Resource) Reservation Protocol | 
      
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      | RSVP | 
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      Rdb Solutions Vendor Program | 
      
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      | RT | 
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      Real Time | 
      
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      | RT | 
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      Reliable Transfer | 
      
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      | RT | 
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      Routing Table | 
      
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      | RT | 
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      Routing Type | 
      
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      | RTA | 
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      Real Time Accelerator | 
      
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      | RTA | 
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      Remote Trunk Arrangement | 
      
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      | RTA | 
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      Restricted To Adults (website label) | 
      
         
         
         
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      | RTAB | 
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      Reliable Transfer ABort | 
      
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      | RTAPI | 
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      Real-Time Application Programming Interface | 
      
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      | RTAS | 
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      Real-time Technology and Application Symposium | 
      
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      | RTBG | 
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      RealTime Business Group | 
      
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      | RTBM | 
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      Read The Bloody Manual | 
      
         
         
         
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      | RTC | 
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      (IBM) Rational Team Concert | 
      
         
         
         
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      | RTC | 
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      RARE Technical Committee | 
      
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      | RTC | 
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      Real Time Communications (server) | 
      
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      | RTC | 
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      Real-Time Clock | 
      
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      | RTCP | 
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      Real-Time Control Protocol (RFC 3550) | 
      
         
         
         
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      | RTD | 
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      Resistance Temperature Detector | 
      
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      | RTE | 
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      Remote Terminal Emulation | 
      
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      | RTEL | 
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      Reverse TELnet | 
      
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      | RTF | 
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      Rich Text Format | 
      
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      | RTFDP | 
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      Real Time Formatted Data Processor | 
      
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      | RTFF | 
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      Read The Fine FAQ | 
      
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      | RTFM | 
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      Read The Fine Manual | 
      
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      | RTFM | 
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      Realtime Traffic Flow Measurement | 
      
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      | RTI | 
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      Remote Terminal Identification | 
      
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      | RTIM | 
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      Repository Type Information Model | 
      
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      | RTK | 
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      Right - To - Know | 
      
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      | RTKNET | 
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      Right - To - Know NETwork | 
      
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      | RTL | 
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      Resistor - Transistor Logic | 
      
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      | RTL | 
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      Right to Left | 
      
         
         
         
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      | RTM | 
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      Regional Telecommunications Management | 
      
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      | RTM | 
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      Release To Manufacturing | 
      
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      | RTM | 
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      Remote Test Module | 
      
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      | RTMFP | 
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      Real Time Media Flow Protocol | 
      
         
         
         
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      | RTML | 
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      Remote Telescope Markup Language | 
      
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      | RTML | 
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      Retail Template Markup Language | 
      
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      | RTMP | 
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      Routing Table Maintenance Protocol | 
      
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      | RTN | 
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      Routing Transit Number | 
      
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      | RTNR | 
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      Ringing Tone No Reply | 
      
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      | RTO | 
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      [TCP] Retransmission Time Out | 
      
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      | RTO | 
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      Ready To Order | 
      
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      | RTO | 
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      Real-Time Ouput | 
      
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      | RTO | 
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      Recovery Time Objective | 
      
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      | RTO | 
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      Return To Office | 
      
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      | RTO | 
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      Runtime Object | 
      
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      | RTOAC | 
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      Reliable Transfer Open Accept | 
      
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      | RTORJ | 
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      Reliable Transfer Open Reject | 
      
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      | RTORQ | 
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      Reliable Transfer Open Request | 
      
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      | RTOS | 
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      Real-Time Operating System | 
      
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      | RTP | 
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      Real-time Transport Protocol (RFC 1889 / 3550) | 
      
         
         
         
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      | RTPM | 
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      Reliable Transfer Protocol Machine | 
      
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      | RTS | 
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      Real Time Strategy (game) | 
      
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      | RTS | 
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      Real-Time System | 
      
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      | RTS | 
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      Reliable Transfer Service | 
      
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      | RTS | 
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      Remote Testing System | 
      
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      | RTS | 
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      Request To Send | 
      
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      | RTS | 
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      Residual Time Stamp | 
      
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      | RTSE | 
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      Reliable Transfer Service Element | 
      
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      | RTSJ | 
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      Real-Time Specification for Java | 
      
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      | RTSP | 
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      Real Time Streaming Protocol (RFC 2326) | 
      
         
         
         
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      | RTSS | 
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      Real-Time SubSystem | 
      
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      | RTT | 
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      Round - Trip Time | 
      
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      | RTTI | 
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      Run-Time Type Identification | 
      
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      | RTU | 
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      Remote Trunking Unit | 
      
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      | RTU | 
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      Right To Use | 
      
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      | RTV | 
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      Real-Time Video | 
      
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      | RTX | 
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      Real-Time Extension | 
      
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      | RU | 
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      Rack Unit | 
      
         
         
         
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      | RU | 
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      Read Uncommitted (isolation level) | 
      
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      | RU | 
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      Request Unit | 
      
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      | RU | 
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      Response Unit | 
      
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      | RU | 
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      Routine Uses | 
      
         
         
         
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      | RUA | 
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      Remote User Agent | 
      
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      | RUCUS | 
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      Rhodes University Computer Users Society | 
      
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      | RUDP | 
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      Reliable User Datagram Protocol | 
      
         
         
         
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      | RUIP | 
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      Remote User Information Program | 
      
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      | RUM | 
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      Remote User Multiplex | 
      
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      | RUP | 
        | 
      Rational Unified Process | 
      
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      | RVD | 
        | 
      (MIT) Remote Virtual Disk | 
      
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      | RVI | 
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      Reverse Interrupt | 
      
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      | RW | 
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      Read - Write | 
      
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      | RWC | 
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      Remote Work Center | 
      
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      | RWCC | 
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      Regional Workshop Coordinating Committee | 
      
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      | RWD | 
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      Responsive Web Design | 
      
         
         
         
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      | RWNJ | 
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      Right-Wing Nut Job | 
      
         
         
         
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      | RWSCC | 
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      Regional WorkShop Coordinating Committee | 
      
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      | RX | 
       | 
      Receive (Transmission or Data) | 
      
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      | RX | 
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      Remote eXchange | 
      
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      | RZ | 
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      Return to Zero | 
      
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      | RZI | 
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      Return to Zero, Inverted | 
      
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