| Nom | Description |
| R O | Read Only |
| R&D |
| GTDS R&D Goddard Trajectory Determination System |
| Research and Development |
| R&M | Reliability and Maintainability |
| R&S | Rohde & Schwarz |
| R/O | Receive Only |
| R/T | Receive/Transmit |
| R/W | Read/Write |
| R |
| Reminder |
| Ring |
| Roentgen [ the quantity of x or gamma radiation such that the associated corpuscular emission per 1.293 milligramm of dry air produces, in air, ions carrying one electrostatic unit of quantity of electricity of either sign ] |
| RA |
| Radiocommunications Agency ( UK ) |
| Rate Adapter (0, 1, 2) |
| Read Audit |
| Real Audio "file name extension" |
| Recognition Arrangement |
| Registration Authority |
| Remote Access |
| Remote Assistance |
| Repair Action |
| Repeat to Address |
| Request Access |
| Return Authorization |
| RAAP | Rapid Application of Air Power |
| RAB | RAID Advisory Board |
| RABID | Rebellion Against Big Irrepressible Dweebs |
| RABITS | Rolling Assisted Biaxially Textured Substrat |
| RAC |
| Rambus Access Controller |
| Rural Area Coverage |
| RACE |
| Research and development in Advanced Communications in Europe |
| Research and development of Advanced Communication in Europe |
| Research and technology development in Advanced Communicationstechnologies in Europe Europe, Vorlaeufer, CORDIS |
| RACF | Resource Access Control Facility |
| RACH | Random Access CHannel |
| RACKS | Reusable Application interface for Communicating real time KernelS |
| RAD |
| Rapid Access Disk |
| Rapid Application Development |
| Rapid Application Development [toolkit] |
| Research And Development [data communications] manufacturer |
| Réelle Approbation des Développements |
| RADAR |
| RAdio Detection And Ranging |
| Radio Detecting And Ranging |
| Rights Availabilities Distribution Analysis and Reporting |
| RADB |
| Routing Arbiter Data Base |
| Routing Arbiter Database |
| RADC | Rome Air Development Center |
| RADD | Rapid Application Development and Deployment |
| RADF | Reversing Automatic Document Feeder |
| RADIUS |
| Remote Authentication Dial In User Service |
| Remote Authentication Dial-In User Service |
| RADSL |
| Rate Adaptive DSL |
| Rate Adaptive Digital Subscriber Line |
| Rate adaptive Asymmetrical Digital Subscriber Line |
| RAF | Record Address File |
| RAG |
| Registration and Advisory Group |
| Row Address Generator |
| RAI |
| Remote Alarm Indication |
| Remote Alarm Signal |
| RAID |
| Redundant Array of Independent Disks |
| Redundant Array of Independent Disks / Redundant Array of Inexpensive Disks |
| Redundant Array of Independent Drives |
| Redundant Array of Inexpensive Disks |
| Redundant Arrays of Independent Disks |
| Redundant Arrays of Independent Drives |
| Redundant Arrays of Inexpensive Disks |
| RAILE | Retro Assisted Imaging Laser Experiment |
| RAIN |
| Regional Access Information Network |
| Réseau d'Accès a l'Internet |
| RAIR |
| Random Access Information Retrieval |
| Remote Access Immediate Response |
| RAIS | Redundant Arrays of Inexpensive Systems |
| RAL |
| ReichsAusschuss fuer Lieferbedingungen |
| Rutherford Appleton Laboratory |
| RALU |
| Register Arithmetic Logic Unit |
| Registered Arithmetic Logic Unit |
| RAM |
| Radar Absorbing Material |
| Random Access Memory |
| Real Address Mode |
| Real Audio Metafile "file name extension" |
| Resident Access Method |
| RAMAC | Random Access Method of Accounting and Control [ IBM disk storage system 1956 ] |
| RAMDAC |
| RAM Digital to Analog Converter |
| Random Access Memory Digital to Analog Converter |
| RAMIS | Rapid Access Management Information System |
| RAMP |
| Reliability Availability Maintainability Program |
| Reliability, Availability, Maintainability Program |
| Remote Access Maintenance Protocol |
| RAMS |
| Record Archival Management System |
| Reliability And Maintainability Symposium |
| RAMTIP | Reliability and Maintainability Technology Insertion Program |
| RAND |
| Random |
| Rural Area Network Design |
| RAO |
| Regional Accounting Office |
| Remote Automation Objects |
| Revenue Accounting Office |
| RAP |
| Rapid Application Prototyping |
| Remote Access Point |
| Response Analysis Program |
| Robert A. Pease [ famous author of 'Electronic Design' magazine's column 'Pease Porridge' ] |
| [internet] Route Access Protocol |
| RAPID |
| Resource And Performance Interactive Display system |
| Reusable Application specific Intellectual property Developers |
| RAPS | Real Application on Parallel Systems |
| RAR |
| Rapid Access Recording |
| Return Address Register |
| RARE |
| Reseaux Associes pour la Recherche Europeene org. |
| Reseaux Associes pour la Recherche Europeenne (Associated Network for European Researc |
| Réseaux Associés pour la Recherche Européenne |
| RARP | Reverse Address Resolution Protocol |
| RAS |
| Random Access Storage |
| Reader Admission System |
| Reliability Availability and Serviceability |
| Reliability, Availability and Serviceability |
| Remote Access Server |
| Remote Access Server / Remote Access Service |
| Remote Access Service |
| Remote Access Services |
| Remote Access Software |
| Row Address Select |
| Row Address Strobe |
| RASAPI | Remote Access Service Application Programming Interface |
| RASC | Residence Account Service Center |
| RASER | Research and Seeker Emulation Radar |
| RASPUTIN | Rapid Scenario Preparation Unit for Intelligence |
| RASSP | Rapid prototyping of Application Specific Signal Processors ( project ) |
| RAT | Rating "file name extension" |
| RATP | Reliable Asynchronous Transfer Protocol |
| RATS | Radio Amateur Telecommunications Society |
| RAVE |
| Relational Advanced Visual Environment |
| Rendering Acceleration Virtual Engine |
| RAW | Raw Data "file name extension" |
| RAX | Remote Access Computing System |
| RB |
| Return to Bias |
| Right Button |
| RBA | Relative Byte Address |
| RBBS | Remote Bulletin Board System |
| RBCS | Remote Bar Code System |
| RBDS | Radio Broadcast Data System |
| RBE | Remote Batch Entry |
| RBF | Random Block Filemanager |
| RBG | Realtime Business Group |
| RBH | Remote Bridge Hub |
| RBHC | Regional Bell Holding Company |
| RBM | Real time Batch Monitor |
| RBMS | Remote Bridge Management Software |
| RBOC |
| Regional Bell Operating Companies |
| Regional Bell Operating Company |
| RBOR | Request Basic Output Report |
| RBP | Registered Business Programmer |
| RBS | Robbed Bit Signaling |
| RBSOA | Reverse Biased Safe Operating Area [ transistor parameters ] |
| RBT |
| Remote Batch Terminal |
| Residual Block Termination |
| RBW | Resolution BandWidth |
| RC24 | Ron's Code 2/4 cryptography, "RC2/4" |
| RC2 | "algorithme de codage utilisé par S HTTP" |
| RC4 | "algorithme de codage utilisé par S HTTP" |
| RC5 | Rivest Cipher 5 RFC 2040, cryptography |
| RC |
| Read Committed (isolation level) |
| Region Co ordinator |
| Regional Center |
| Release Candidate |
| Remote Control |
| Resistance - Capacitance |
| Resource "file name extension" |
| Retrieval Center |
| Return Code |
| Routing Control |
| Run Commands |
| RCA | Receive Configure Ack |
| RCAC | Remote Computer Access Communications service |
| RCAS | Reserve Component Automation System |
| RCB |
| Request Control Block |
| Resource Control Block |
| RCC |
| Radio Common Carrier |
| Regional Control Center |
| Remote Cluster Controller |
| Routing Control Center |
| RCCB | Residual Current Circuit Breaker |
| RCD |
| Receiver Carrier Detector |
| Receiver-Carrier Detector |
| RCE | Resident Command Extension |
| RCF |
| Reader's Comment Form |
| Remote Call Forwarding |
| RCGI | Remote Common Gateway Interface |
| RCJ | Receive Code Reject |
| RCL |
| Recall |
| Rotate Carry Left |
| Runtime Control Library |
| RCLDN | Retrieval of Calling Line Directory Number |
| RCM |
| Regulatory Compliance Mark ( Australia/New Zealand ) |
| Remote Carrier Module |
| RCN | Receive Configure Nak |
| RCP |
| Recognition and Control Processor |
| Remote Control Panel |
| Remote Copy |
| Remote Copy Program |
| Restore Cursor Position |
| RCPT |
| Receipt |
| Recipient |
| RCR |
| Receive good Configure Request |
| Required Carrier Return |
| Rotate Carry Right |
| RCS |
| Radar Cross Section |
| Records Communications Switching System |
| Reloadable Control Storage |
| Reloadable Control Store |
| Remote Connection Service |
| Resource Construction Set |
| Revision Control System |
| RCT |
| Region Control Task |
| Resource Control Table |
| RCTC | Rewritable Consumer Time Code |
| RCTL | Resistor Capacitor Transistor Logic |
| RCU | Radio Channel Unit |
| RCV | Receiver |
| RD LAP | Radio Data Link Access Protocol |
| RD |
| (modem) Receive Data |
| Read |
| Receive Data |
| Recursive Design |
| Remote Device |
| Remote Diagnosis |
| Remove Directory |
| Remove Directory (DOS) |
| Research and Development, "R&D" |
| Route Descriptor |
| RDA |
| Real time Debug Agent |
| Remote Data Access / Remote Database Access |
| Remote Database Access |
| RDAC | Resistor Digital to Analog Converter |
| RDAU | Remote Data Access Unit |
| RDB |
| Receive Data Buffer |
| Relational DataBase |
| Resource Database |
| Rigid Disk Block |
| RDBA | Remote DataBase Access |
| RDBMS |
| Relational DataBase Management System |
| Relational DataBase Management System / Remote DataBase Management System |
| RDBMSMIB | Relational DataBase Management System Management Information Base "DB","RDBMS MIB" |
| RDC |
| Remote Data Concentrator |
| Remote Data Connector |
| Remote Diagnostic Capability |
| RDCLK | Received Timing Clock |
| RDD |
| Random Digital Dial |
| Replacable Database Driver |
| RDE | Received Data Enable |
| RDES | Remote Data Entry System |
| RDF |
| Radio Direction Finding |
| Rate Decrease Factor |
| Record Definition Field |
| Reseller Developer Funds |
| Resource Description Framework |
| RDH | Remote Device Handler |
| RDI |
| Remote Defect Identification / Indicator |
| Remote Defect Identification / Remote Defect Indicator / Remote Defect Indication |
| Remote Defect Indication ( ATM ) |
| RDL-SQL | Relational Database Language - Structured Query Language |
| RDL |
| Relational Database Language |
| Remote Digital Loopback |
| RDLAP | Radio Data Link Access Protocol "MODACOM", "RD LAP" |
| RDLL | Register controlled Delay Locked Loop |
| RDLSQL | Relational Database Language Structured Query Language |
| RDM |
| Relational Data Modeler |
| Reliably Delivered Message |
| RDN |
| Radio Data Network |
| Relative Distinguished Name |
| RDNCRC | Research Data Network Cooperative Research Centre |
| RDO |
| Remote Data Object |
| Remote Data Objects |
| RDOS | Real time Disk Operating System |
| RDP |
| Reliable Datagram Protocol |
| Remote Desktop Protocol |
| RDR |
| Remote Data Recovery |
| Remote Data Recovery ( service Ontrack ) |
| Request Data with Reply |
| RDRAM |
| Rambus DRAM |
| Rambus Dynamic Random Access Memory |
| RDRN | Rapidly Deployable Radio Networks |
| RDS |
| Radio Data System |
| Radio Digital System |
| Rapid Development System |
| Remote Data Services |
| Remote Document Server |
| Retinal Display System |
| RDSL |
| "See DSL" |
| Rate Adaptive Digital Subscriber Line |
| RDSN | Region Digital Switched Network |
| RDSR | Receiver Data Service Request |
| RDT&E | Research, Development, Test, and Evaluation |
| RDT |
| Radio Digital Terminal |
| Recall Dial Tone |
| Referenced Data Transfer |
| Remote Digital Terminal |
| Resource Definition Table |
| Restricted Data Transmissions |
| RDTO | Receive Data Transfer Offset |
| RDX | Realistic Display Mixer |
| RE |
| Reference Equivalent |
| Regular Expression |
| Research and Engineering, "R&E" |
| REACH | Research and Educational Applications of Computers in the Humanities |
| READ | Relative Element Address Designate cryptography |
| REBI | Reliability of Electronic Business Information |
| REC. | Recreation |
| REC |
| RARE Executive Committee |
| Record (as in tape Record-ing) |
| Recorder "file name extension" |
| Recreational or Entertainment Activities "Domain Name" "Internet" |
| Regional Engineering Center |
| RECAB | Radio Equipment Conformity Assessment Body |
| RED | Random Early Detection |
| REF | Reference "file name extension" |
| REG | Register |
| REGAL | Rigid Epoxy Glass Acrylic Laminate |
| REGEX | REGular EXpressions |
| REGEXP | Regular Expression |
| REGIS | REmote Graphics Instruction Set |
| REJ | Reject |
| RELP | Residual Excited Linear Prediction |
| RELSECT | Relative Sector |
| REM |
| Rapid Eye Movement |
| Remark |
| Remote |
| Remote Equipment Module |
| Ring Error Monitor |
| REMF | Reverse ElectroMagnetic Force |
| REMIS | Real Estate Management Information System |
| REMOBS | REMote OBservation System |
| REMOS | Resources Management On Line System |
| REN |
| Remote ENable |
| Rename |
| Rename (DOS) |
| Ringer Equivalence Number |
| RENATER | Réseau National de telecommunications pour la Technologie l'Enseignement et la Recherche |
| REP |
| Repeat |
| Repeater Expansion Port |
| REPE | Repeat while Equal |
| REPNE | Repeat while Not Equal |
| REPNZ | Repeat while Not Zero |
| REPROM | Reprogrammable PROM |
| REPZ | Repeat while Zero |
| REQ | Request |
| RER | Receive Echo Request |
| REREG | Re Register |
| RERIF | Réseau Enseignement Recherche d'Ile de France |
| RES |
| Remote Entry Services |
| Remote Execution Service |
| Reserved |
| Reset |
| Resolution |
| Resource "file name extension" |
| RESCU | Remote Emergency Satellite ResCue Unit |
| RESTENA | RESeau Teleinformatique de l'Education NAtionale et de la rechercenetwork, Luxemburg |
| RET |
| Report Engine Technology |
| Resolution Enhancement Technology |
| Resolution Enhancement Technology "HP", "REt" |
| Resolution Enhancement Technology (usually as REt) |
| Return |
| RETAIN | Remote Technical Assistance and Information Network |
| RETLA | Really Extended Three Letter Acronym |
| RETM | Rare Earth / Transition Metal "MO", "RE/TM" |
| RETR | Retrieve |
| RETRVIR | REmote TeleRobotic Vehicle for Intelligent Remediation |
| REU |
| Remote Entry Unit |
| Research Experiences for Undergraduates |
| REV |
| Revenue |
| Revision |
| REW | Read Execute Write |
| REX |
| Relocatable Executable |
| Route Extension |
| REXEC | Remote Execution |
| REXX |
| REstructured eXtended eXecuter (language) |
| Restructured EXtended eXecutor [language] |
| Restructured Extended Executor |
| RF/DC | Radio Frequency / Data Communication |
| RF/ID | Radio Frequency Identification |
| RF |
| Radio Frequency |
| Radio Frequency [ normally in the megahertz range ] |
| Resume Flag |
| RFA |
| Register Field Address |
| Remote File Access |
| Request for Assistance |
| Resident Flash Array |
| RFB | Recording For the Blind |
| RFC |
| Radio Frequency Choke |
| Remote Function Call |
| Request For Comment |
| Request For Comments |
| [Internet] Request For Comment |
| RFCM | Radio Frequency Countermeasure |
| RFD |
| Ready For Data |
| Regional Frequency Divider |
| Report Fragmentation Done [bit] |
| Request For Discussion "Internet, Usenet", "RfD" |
| Request for Discussion |
| RFDC | Radio Frequency Data Communication |
| RFE |
| Request For Enhancement |
| Return From Exception |
| RFI |
| Radio Frequency Interference |
| Radio Frequency Interference [ special case of EMI wherein the induced signal falls into the RF spectrum ] |
| Request For Information |
| RFIC | Radio Frequency Intergrated Circuit |
| RFID | Radio Frequency IDentification |
| RFMS | Remote File Management System |
| RFNM | Request For Next Message |
| RFP |
| Radio Fixed Part ( DECT ) |
| Request For Proposal |
| RFPI | Radio Fixed Part Identity ( DECT ) |
| RFQ |
| Request For Quotation |
| Request For Quote |
| RFS |
| Remote File Server / Remote File System |
| Remote File Sharing |
| Remote File System |
| RFT |
| Request For Technology |
| Request For Technology ( process ) |
| Revisable Form Text |
| Revisable Form Text / Revisable Format Text |
| Rich Text Format |
| RFTDCA | Revisable Form Text Document Content Architecture |
| RFTM | Right From The Manual |
| RFTS | Remote File Transfer System |
| RFU | Reserved For Future Use |
| RG | Radio Government |
| RGB |
| Red Green Blue |
| Rot Gruen Blau / Red Green Blue color system, DTP |
| RGDI | Renaissance Graphic Device Interface |
| RGM | Reversible Grammar Machine |
| RGP |
| Raster Graphics Processor |
| Remote Graphics Processor |
| RGT | Réseau de Gestion des Telecommunications |
| RH |
| Relative Humidity |
| Request Header |
| Response Header |
| Right Hand |
| RHG | Recording Heads Group ( Seagate ) |
| RHM | Remote Hardware Monitoring |
| RHOB | Relevant Hierarchical Operational Binding |
| RHS | Right Hand Side |
| RI |
| Reference Implementation |
| Referential Integrity |
| Rename Inhibit |
| Ring In (MAU Connector) |
| Ring Indicate |
| Ring Indication / Ring Indicator (signal) |
| Ring Indicator |
| Routing Indicator |
| Routing Information |
| RIA |
| Research Institute of America |
| Robot Institute of America |
| RIAA | Recording Industry Association of America |
| RIACS | Research Institute for Advanced Computer Science org. |
| RIB |
| Research Internet Backbone |
| Routing Information Base |
| RID |
| Relative Identifier |
| Remote Isolation Device |
| RIDE | Research Issues in Data Engineering |
| RIDS | Reset Information Data Set |
| RIE | Reactive Ion Etching |
| RIF | Routing Information Field |
| RIFF | Resource Interchange File Format |
| RIG | Related Interest Group |
| RII | Routing Information Indicator |
| RIM |
| Remote Installation and Maintenance |
| Remote Interface Modul ( code ) |
| Resource Interface Module |
| RIME | Relaynet International Message Exchange |
| RIN |
| Relative Intensity Noise |
| Research Internet |
| RINA | Registro Italiano Navale |
| RIO |
| Redistributed Internet Object |
| Redistributed Internet Objects |
| RIP |
| Raster Image Processor |
| Remote Imaging Protocol |
| Requiescat In Pace |
| Router Information Protocol / Routing Information Protocol |
| Routing Information Protocol |
| Routing Information Protocol [ Enables a router to exchange routing information with a neighboring router ] |
| RIPE |
| Reseaux IP Europeene Europenet |
| Reseaux IP Europeenne (European continental TCP/IP network) |
| Réseaux IP Européens |
| RIPEM | Riordan's Internet Privacy Enhanced Mail |
| RIPL | Remote Initial Program Load |
| RIPN | Russian Institute for Public Networks |
| RIPNG | Routing Information Protocol Next Generation "RIP, IPV6, RFC 2080","RIPng" |
| RIPS |
| Raster Image Processing System |
| Raster Image Processing Systems corporation manufacturer |
| RIPSO | Revised Internet Protocol Security Option |
| RIRO | Roll In Roll Out |
| RIS |
| Random Interleaved Sampling [ one method of ETS ] |
| Remote Installation Service |
| RISC |
| Reduced Instruction Set Code |
| Reduced Instruction Set Computer |
| Reduced Instruction Set Computing |
| Research Institute for Symbolic Computation |
| RISCOS | RISC Operating System "MIPS, Acorn, OS", "RISC OS" |
| RISD | Reference Information Systems Development |
| RISE | Retrieval and Interchange of Standards in Europe |
| RISLU | Remote Integrated Services Line Unit |
| RISQ | Réseau Inter ordinateurs Scientifique Québecois |
| RIT |
| Raw Input Thread |
| Rochester Institute of Technology |
| RITECH | Resolution Improvement TECHnology |
| RITSEC | Regional Information Technology and Software Engineering Center |
| RIX |
| Replicated Information eXchange |
| Russia Internet Exchange |
| RJ11 | Registered Jack |
| RJ45 | Registered Jack |
| RJ |
| Registered Jack |
| Registered Jack (as in RJ-11 and RJ-45) |
| RJE | Remote Job Entry |
| RJEF | Remote Job Entry Function |
| RJP | Remote Job Processing |
| RK | Radial Keratectomy |
| RKE | Remote Key Entry |
| RKRM | ROM Kernel Reference Manual |
| RL |
| Real Life |
| Rome Lab |
| RLA | Remote Loop Adapter |
| RLCM | Remote Line Concentrating Module |
| RLD |
| Received Line Detect |
| Relocation Dictionary |
| RLE |
| Run Length Encoded |
| Run Length Encoded (graphic format) |
| Run Length Encoding |
| Run Length Encoding ( data compression ) |
| RLFAP | Radio Link Frequency Assignment Problem |
| RLG | Ring Laser Gyro |
| RLIN |
| Research Libraries Information Network |
| Research Libraries Information Network network |
| RLL |
| Run Length Limited |
| Run Length Limited ( data encoding ) |
| Run Length Limited [encoding] |
| RLM |
| Remote Line Module |
| Resident Load Module |
| RLN |
| Remote LAN Node |
| Remote LAN Nodes |
| RLOGIN | Remote Login |
| RLP |
| Radio Link Protocol |
| Resource Location Protocol |
| RLS |
| Received Line Signal |
| Record Level Sharing |
| Recursive Least Squares ( algorithm ) |
| RLSD : | |
| RLSD |
| Received Line Signal Detected |
| Received Line Signal Detector |
| RLSI | Ridiculously Large Scale Integration |
| RLT | Remote Line Test |
| RLV | RingLeitungsVerteiler |
| RM&S | Reliability, Maintainability, and Supportability |
| RM |
| Reference Model |
| Reset Mode |
| Resource Management |
| Resource Management ( ATM ) |
| RMA |
| Rate Monotonic Analysis |
| Return Material Authorization |
| Return Merchandise Authorization |
| Return to Manufacturer Authorization |
| RMAS | Remote Memory Administration System |
| RMATS |
| Remote Maintenance Administration and Traffic |
| Remote Maintenance And Testing System |
| RMB | Right Mouse Button |
| RMC |
| Reverse Mapping Check |
| Rod Memory Computer |
| RMDIR |
| Remove Directory |
| Remove Directory (DOS) |
| RMDM | Reference Model of Data Management |
| RMF |
| Read Me First |
| Remote Management Facility |
| Resource Management Facility |
| Resource Measurement Facility |
| Rich Music Format |
| RMG | Recording Media Group ( Seagate ) |
| RMI |
| Remote Messaging Interface |
| Remote Method Invocation |
| [Java] Remote Method Invocation |
| RMII | Reduced Media Independent Interface |
| RMM |
| Read Mostly Memory |
| Ring Management Module |
| RMOA | Real time Multimedia Over ATM |
| RMON |
| Remote MONitoring |
| Remote Monitor |
| Remote Monitor standard / Remote network MONitoring |
| Remote Monitor/Monitoring |
| RMONMIB | Remote network MONitoring Management Information Base |
| RMOS | Realtime Multitasking Opearting System |
| RMP |
| Remote Maintenance Processor |
| Remote Maintenance Protocol |
| RMR | Remote Message Register |
| RMS |
| Reason Maintenance System |
| Record Management Services |
| Recovery Management Support |
| Root Mean Square |
| Root Mean Square [ is derived from the square root of the average of the squares of the magnitudes ] |
| Root Mean Squared |
| RMT |
| Raw Magnetic Tape |
| Rexxware Migration Tool |
| Ring ManagemenT |
| RMW |
| Read Modify Write |
| Read Modify Write ( cycle ) |
| RN |
| Read News |
| Receipt Notification |
| RNA | Remote Network Access |
| RNC | Radio Network Controller |
| RND |
| RAD Network Devices RAD, manufacturer |
| Random |
| Round number |
| RNE | Reseau National d'Essal (National Network for Testing) |
| RNG |
| Radio Network Gateway |
| Random Number Generator |
| RNI | Raw Native Interface |
| RNIS | Réseau Numérique à Intégration de Services |
| RNOC | Regional Network Operations Center |
| RNP | Regional Network Provider |
| RNR |
| Receive Not Ready |
| Receiver Not Ready |
| RNUI | Remote Network User Identification |
| RNX | Restricted Numeric Exchange |
| RO |
| Read Only |
| Receive Only |
| Relaxation Oscillation |
| Remote Operations |
| Ring Out (MAU connector) |
| ROA | Return On Assets |
| ROAC | Report Origin Authentication Check |
| ROAD | Routing and Addressing |
| ROAMS | Reusable Object Access and Management System |
| ROB |
| Remote Order Buffer |
| Reorder Buffer |
| ROC | Regional Operating Company |
| ROCIE | Riverside/Orange County/Inland Empire (Net) |
| ROCOF | Rate Of Occurrence Of Failure |
| ROD | Rewritable Optical Disk |
| ROER | Remote Operations ERror |
| ROF | Réseau Optique Flexible |
| ROFL |
| Roll On Floor Laughing |
| 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 |
| ROH | Receiver Off-Hook |
| ROI |
| Return On Investment |
| Return-On-Investment |
| ROID | Relative Object IDentifier |
| ROIV | Remote Operations InVoke |
| ROL | Rotate Left |
| ROLAP |
| Relational On Line Analytical Processing |
| Relational On-Line Analytical Processing |
| Relational OnLine Analytical Processing |
| ROLC | Routing Over Large Clouds |
| ROM |
| Read Only Memory |
| Rough Order Of Magnitude |
| ROMBIOS | Read Only Memory Basic Input Output System "ROM, BIOS", "ROM BIOS" |
| ROMC |
| Required Operational Messaging Characteristic |
| Required Operational Messaging Characteristics |
| RON | Run Occurrence Number |
| RONABIT | Return On Net Assets Before Interest And Taxes |
| RONTR | Receive Only Non Typing Reperforator |
| ROOF | Real time Object Oriented Framework |
| ROOM |
| Real Time Object Oriented Modeling |
| Real time Object Oriented Modeling ( method ) |
| ROP |
| RISC Operation |
| Raster OPerations |
| Raster Operation |
| Receive Only Printer |
| Remote Operations Service |
| ROPES | Rapid Object Oriented Process for Embedded Systems |
| ROPM | Remote Operations Protocol Machine |
| ROR | Rotate Right |
| RORE | Remote Operations Return Error |
| RORJ | Remote Operations ReJect |
| RORS | Remote Operations ReSponse |
| ROS |
| Read Only Storage |
| Read-Only Store |
| Resident Operating System |
| ROSCOE | Remote Operating System Conversational Online Environment |
| ROSE | Remote Operations Service Element |
| ROT |
| Rule Of Thumb |
| Running Object Table |
| ROTF | Rolling On The Floor |
| ROTFL |
| Rolling On The Floor Laughing |
| Rolling On The Floor Laughing slang, Usenet, IRC |
| ROTFLBTC | Rolling On The Floor Laughing and Biting The Carpet slang, Usenet, IRC |
| ROTL | Remote Office Test Line |
| ROTR | Receive Only Typing Reperforator |
| ROW |
| Rest Of the World |
| Rest Of the World [ includes all other geographies except Japan, North America, and Europe ] |
| RP 1 | Rocket Propellant 1 (standard kerosene rocket fuel, MIL P 25576) |
| RP |
| Rapid Prototyping |
| Relay Party |
| RPA | Remote Passphrase Authentication |
| RPC |
| Radio Packet Controller |
| Registered Protective Circuitry |
| Remote Procedure Call |
| RPCL | Remote Procedure Call Language |
| RPCRT | Rear Projection Cathode Ray Tube |
| RPDFT | Robustly Path Delay Fault Testable |
| RPE |
| Reliable Processing Environment |
| Remote Peripheral Equipment |
| Required Page End |
| Respiratory Protective Equipment |
| RPELTP | Regular Pulse Excitation with Long Term Prediction [loop] "LPC", "RPE LTP" |
| RPG |
| Remote Password Generator |
| Report Program Generator |
| Report Program Generator (programming language) |
| Role Playing Game |
| RPI |
| Remote Process Interface |
| Rockwell Protocol Interface |
| RPL |
| Remote Procedure Load / Remote Program Load |
| Remote Program Load |
| Request Parameter List |
| Requested Privilege Level |
| Resident Programming Language |
| RPM |
| Radio Packet Modem |
| Redhat Package Manager |
| Relentless Pursuit of Magnificence |
| Reliability Performance Measure |
| Remote Port Module |
| Remote Process Management |
| Remote Provisioning and Maintenance |
| Request Processing Module |
| Revolution Per Minute |
| Revolutions Per Minute (usually rpm) |
| Rotations Per Minute |
| RPN |
| Real Page Number |
| Reverse Polish Notation |
| RPO | Remote Power On |
| RPOA | Recognized Private Operating Agency |
| RPOS | Retail Point Of Sale |
| RPP | Relative Processor Performance |
| RPPROM | Reprogrammable PROM |
| RPQ | Request for Price Quotation |
| RPR | Relative Performance Rating |
| RPRINTER | Remote Printer |
| RPS |
| Realtime Programming System |
| Redundant Power Supply |
| Rotational Position Sensing |
| RPT | Repeat |
| RPV | Remotely Piloted Vehicle |
| RPW | Running Process Word |
| RQ | Request |
| RQBE | Relational Query By Example |
| RQE | Reply Queur Element |
| RQS | Rate Quote System |
| RQSM | Regional Quality Service Management |
| RQT | Reliability Quality Test |
| RR |
| Radio Resource management |
| Ready to Receive |
| Real Reality |
| Receiver Ready |
| Regenerative Repeater |
| Repeatable Read (isolation level) |
| Routing Registry |
| RRC | Resource Records Check |
| RRCM | Reservation Request Control Mechanism |
| RRDS | Relative Record Data Set |
| RRIP | Rock Ridge Interchange Protocol |
| RRN | Relative Record Number |
| RRO | Reports Receiving Office |
| RRP | Recommended Retail Price |
| RRT | Reverse Recovery Time |
| RRZE | Regionales RechenZentrum Erlangen org. |
| RRZN | Regionales RechenZentrum fuer Niedersachsen org. |
| RS-PPDU | ReSynchronize Presentation Protocol Data Unit |
| RS232 | "Interface série 8 bits 0 à 19200 bauds distance 14 mètres EIA" |
| RS422 | "Interface série 8 bits 10 Mbauds distance 1200 mètres EIA" |
| RS |
| Radio Shack |
| Recommended Standard |
| Record Separator |
| Record Separator ( ASCII control code ) |
| Record Separator (ASCII) |
| Reed Solomon code |
| Registery Service |
| Remote Single-layer |
| Request to Send |
| Reset |
| Resume Session |
| Ring Station |
| RSA-PPDU | ReSynchronize Acknowledge Presentation Protocol Data Unit |
| RSA129 | "129 digit cryptographic security number named after its inventors: Drs. Ronald L. Rivest Adi Shamir and Leonard M. Adleman" |
| RSA |
| Random Scheduling Algorithm [protocol] |
| Reference System Architecture |
| Repair Service Attendant |
| Reusable Software Assets |
| Rivest Shamir Adelman |
| Rivest, Shamir and Adelman ( key ) |
| Rivest, Shamir und Adleman cryptography, RSA |
| Rivest-Shamir-Adleman (encryption algorithm) |
| RSAC |
| Recreational Software Advisory Council |
| Recreational Software Advisory Council org. |
| RSACI | Recreational Software Advisory Council on the Internet (usually as RSACi) |
| RSAM | Relative Sequential Access Method |
| RSAP | Remote Service Access Point |
| RSAPPDU | ReSynchronize Acknowledge Presentation Protocol Data Unit |
| RSAT | Reliability and System Architecture Testing |
| RSB | Repair Service Bureau |
| RSC |
| Recursive Systematic Convolutional ( encoder ) |
| Remote Switching Center |
| RSCS |
| Remote Source Control System |
| Remote Source Control System / Remote Spooling and Control Subsystem / Remote Spooling |
| Remote Spooling Communications Subsystem |
| Remote Spooling Communications System |
| RSD |
| Redundant Signed Digit ( principle ) |
| Route Server Daemon |
| RSDS | Relative Sequential Data Set |
| RSE |
| Remote Single-layer Embedded |
| Removable Storage Elements |
| Research and Systems Engineering |
| RSET | Reset |
| RSF | Remote Support Facility |
| RSFG | Route Server Functional Group (ATM Forum) |
| RSH |
| Remote Shell |
| Restricted SHell |
| RSI |
| Repetitive Strain Injury |
| Repetitive Stress Injury |
| RSIS | Relocateable Screen Interface Specification |
| RSL |
| Received Signal Level |
| Request and Status Link |
| RSLE | Remote Subscriber Line Equipment |
| RSLM | Remote Subscriber Line Module |
| RSLP | Rocket System Launch Program |
| RSM |
| Real Storage Management |
| Remote Switching Module |
| Resume |
| RSN |
| Real Soon Now |
| Real Soon Now slang |
| RSO | Regional Standards Organization |
| RSP | Required Space Character |
| RSPB | Royal Society for the Protection of Birds |
| RSPBA | Royal Scottish Pipe Band Association (Glasgow, Scotland) |
| RSPC | Reed Solomon Product Code "SDD", "RS PC" |
| RSPF | Reduced Standard Parasitic Format |
| RSPPDU | ReSynchronize Presentation Protocol Data Unit |
| RSPT | Real Storage Page Table |
| RSPU | Radar Signal Processor Unit |
| RSPX | Remote Sequenced Packet eXchange |
| RSRB | Remote Source Route Bridging |
| RSS |
| Reception Support Statement |
| Resource Security System |
| Root of the Sum of the Squares [ standard technique for summing uncorrelated noise sources ] |
| RSSI | Received Signal Strength Indicator |
| RST |
| Reset |
| Restart |
| Restore Start up state |
| RSTS/E | Resource System Time Sharing / Environment |
| RSTS | Resource Sharing Time Sharing |
| RSTSE |
| Resource System Time Sharing Enhanced |
| Resource System Time Sharing/Enhanced "DEC", "RSTS/E" |
| RSU | Remote Switching Unit |
| RSVP |
| Rdb Solutions Vendor Program |
| ReSerVation Protocol |
| Resource reSerVation Protocol |
| RSX11D | Resource Sharing eXecutive 11D "DEC", "RSX 11D" |
| RSX11M | Resource Sharing eXecutive 11M "DEC", "RSX 11M" |
| RSX3D | Realistic Sound eXperience 3D "Intel, Audio, VRML", "RSX 3D" |
| RSX |
| Real Time Resource Sharing Executive |
| Realistic Sound eXperience |
| RT/DSS | Real Time/Decision Support Service |
| RT |
| RISC Technology |
| Real Time |
| Receiver Transmitter |
| Register Transfer |
| Related Term |
| Reliable Transfer |
| Remote Terminal |
| Reperforator Transmitter |
| Research and Technology, "R&T" |
| Routing Table |
| Routing Type |
| Run Time |
| RTA |
| Real Time Accelerator |
| Receive Terminate Ack |
| Run Time Analysis |
| RTAB | Reliable Transfer ABort |
| RTAI | Real Time Application Interface |
| RTAM |
| Remote Teleprocessing Access Method |
| Remote Terminal Access Method |
| RTAPI |
| Real Time API |
| Real-Time Application Programming Interface |
| RTAS | Real-time Technology and Application Symposium |
| RTB |
| Read Tape Binary |
| Response/Throughput Bias |
| RTBG | RealTime Business Group |
| RTBM |
| Read The Bloody Manual |
| Real Time Bit Mapping |
| RTC |
| RARE Technical Committee |
| Real Time Clock |
| Real Time Command |
| Real-Time Clock |
| Research and Technolgy Center |
| Réseau Téléphonique Commuté |
| RTCA | Radio Technical Commission on Aeronautics |
| RTCM | Radio Technical Committe for Maritime applications |
| RTCP |
| Real time Transfer Control Protocol ( Ethernet ) |
| Real time Transport Control Protocol |
| RTCS | Real Time Computer System |
| RTCU | Real Time Control Unit |
| RTD |
| Real Time Display |
| Resistance Temperature Detector |
| Resistance Temperature Detector/Device |
| RTDHS | Real Time Data Handling System |
| RTDM | Real Time Data Migration |
| RTDX | Real Time Data eXchange |
| RTE |
| Real Time Execution |
| Remote Terminal Emulation |
| Run Time Environment |
| RTEK | Real Time Embedded Kernel |
| RTEL | Reverse TELnet |
| RTF |
| Read This First |
| Rich Text Format |
| RTFAQ | Read the FAQ |
| RTFB | Read The Fucking Binary |
| RTFF | Read The Fucking FAQ slang, Usenet |
| RTFM |
| Read The Fine Manual |
| Read The Fucking Manual |
| Read The Fucking Manual ( net slang ) |
| Read The Fucking Manual slang, Usenet, IRC |
| Realtime Traffic Flow Measurement |
| RTFS | Read The Fucking Source |
| RTG | Routing Table Generator |
| RTI |
| ReTurn from Interrupt |
| Real Time Interface |
| Remote Terminal Identification |
| RTIC | Real Time Information in the Cockpit |
| RTK |
| Real Time Kernel |
| Right - To - Know |
| RTKNET | Right - To - Know NETwork |
| RTL |
| Raster Transfer Language |
| Real Time Language |
| Register Transfer Language |
| Register Transfer Language/Level |
| Register Transfer Level ( VHDL ) |
| Resistor - Transistor Logic |
| Resistor Transistor Logic |
| Right To Left |
| Run Time Library |
| RunTime Library |
| RTM |
| Read The Manual |
| Real Time Monitor |
| Regional Telecommunications Management |
| Registered Trade Mark |
| Registered Transfer Module |
| Release To Market |
| Remote Test Module |
| Response Time Monitor |
| Runtime Manager |
| RTMP |
| Routing Table Maintenance Protocol |
| Routing Table Management Protocol |
| RTN |
| Reuters Transaction Network |
| Routing Transit Number |
| RTNR | Ringing Tone No Reply |
| RTO | Return To One |
| RTOAC | Reliable Transfer Open Accept |
| RTOC | Real Time Information out of the Cockpit |
| RTOMAX | Retransmission Time Out Maximum |
| RTORJ | Reliable Transfer Open Reject |
| RTORQ | Reliable Transfer Open Request |
| RTOS | Real Time Operating System |
| RTOSUH | Real Time Operating System Universitaet Hannover "OS", "RTOS UH" |
| RTP |
| Rapid Transport Protocol |
| Real Time Protocol |
| Real Time Transport Protocol |
| Real time Transfer Protocol ( Ethernet ) |
| Research and Technology Project |
| RTPM | Reliable Transfer Protocol Machine |
| RTR | Receive Terminate Request |
| RTS |
| Reactive Terminal Service |
| Read The Screen |
| Ready To Send |
| Real Time Sequencing |
| Real Time System |
| Real-Time System |
| Reliable Transfer Service |
| Remote Takeover System |
| Remote Terminal Supervisor |
| Remote Testing System |
| Request To Send |
| Residual Time Stamp |
| RTSA | Real Time Spectrum Analyzer |
| RTSE | Reliable Transfer Service Element |
| RTSI | Real Time System Integration ( bus ) |
| RTSM | RealTime System Manager |
| RTSMP | Real Time Symmetric Multiprocessor |
| RTSP | Real Time Streaming Protocol |
| RTSS | Real-Time SubSystem |
| RTT |
| Real Time Trace |
| Round - Trip Time |
| Round Trip Time |
| RTTE | Radio and Telecommunications Terminal Equipment |
| RTTI |
| Run Time Type Identification |
| Run Time Type Information |
| Run-Time Type Identification |
| Runtime Type Information |
| RTTS | Real Time Task Scheduler |
| RTTY |
| Radio Tele TYpe |
| Radio Teletypewriter |
| RadioTeleType |
| RTU |
| Real Time Unit |
| Real Time Unix |
| Remote Terminal Unit |
| Remote Trunking Unit |
| Right To Use |
| RTV |
| Real Time Video |
| Real-Time Video |
| RTVBR | RealTime Variable Bit Rate "VBR, ATM", "rt VBR" |
| RTX |
| Real Time eXtensions |
| Real-Time Extension |
| Run Time Extension |
| RTZ | Return To Zero ( data encoding scheme ) |
| RU |
| Read Uncommitted (isolation level) |
| Request Unit |
| Response Unit |
| RUA |
| Remote User Agent |
| Remote User Agnet |
| RUAC | Remote User Access Centers |
| RUC | Receive Unknown Code |
| RUCUS | Rhodes University Computer Users Society |
| RUI | Reality User Interface |
| RUIP | Remote User Information Program |
| RULER | Remaining Useful Life Evaluation Routine (lubricants) |
| RUM | Remote User Multiplex |
| RUN | Rewind/Unload |
| RUOW | Remote Unit Of Work "DRDA, IBM", "RUoW" |
| RUS | Rechenzentrum der Universitaet Stuttgart |
| RVA |
| Recorded Voice Announcement |
| Relative Virtual Address |
| RVB | Rouge Vert Bleu |
| RVD |
| (MIT) Remote Virtual Disk |
| Rapid Vapor phase Doping |
| Remote Virtual Disk |
| RVI | Reverse Interrupt |
| RVO | ReichsVesicherungsOrdnung |
| RVT | Resource Vector Table |
| RW |
| Read - Write |
| Read/Write "I/O", "R/W" |
| Rewritable |
| RWC | Remote Work Center |
| RWCC | Regional Workshop Coordinating Committee |
| RWCP | Real World Computing Partnership |
| RWIN | Receive Window |
| RWM | Read Write Memory |
| RWO | Right Wrong Omits |
| RWR | Radar Warning Receiver |
| RWSCC | Regional WorkShop Coordinating Committee |
| RWTÜV | Rheinisch Westfälischer Technischer Überwachungs Verein |
| RX |
| Receive (Transmission or Data) |
| Receiver |
| RXD | Receive Data |
| RX_DV | Receive Data Valid ( signal ) |
| RX_ER | Receiver Error ( signal ) |
| RZ |
| RechenZentrum |
| Return to Zero |
| Return to Zero [recording] |
| Return to Zero recording |
| RZG | RechenZentrum Garching |
| RZI | Return to Zero, Inverted |
| ReLaTe | Remote Language Teaching |
| RegTP | Regulierungsbehörde für Telekommunikation und Post [ ehemals BAPT ] |
| Rx | Receive |
| rpm | revolutions per minute |
