| A | B |
|---|
| RAMBUS | Rambus Dynamic Random Access Memory |
| RAS | Remote Access Service |
| RDP | Remote Desktop Protocol |
| RF | Radio Frequency |
| RFI | Radio Frequency Interference |
| RGB | Red Green Blue |
| RIP | Routing Information Protocol |
| RIS | Remote Installation Service |
| RISC | Reduced Instruction Set Computer |
| RJ-11 | Registered Jack Function 11 |
| RJ-45 | Registered Jack Function 45 |
| RMA | Returned Materials Authorization |
| ROM | Read Only Memory |
| RPO | Recovery Point Objective |
| RTC | Recovery Time Objective |
| SAN | Storage Area Network |
| SAS | Serial Attached SCSI |
| SATA | Serial Advanced Technology Attachment |
| SC | Subscription Channel |
| SCP | Secure Copy Protection |
| SCSI | Small Computer System Interface |
| SCSI ID | Small Computer System Interface Identifier |
| SD Card | Secure Digital Card |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SEC | Single Edge Connector |
| SFC | System File Checker |
| SFF | Small Form Factor |
| SFTP | Secured File Transfer Protocol |
| SIMM | Single In-Line Memory Module |
| SLI | Scalable Link Interface or System Level Integration or Scanline Interleave Mode |
| S.M.A.R.T. | Self-Monitoring, Analysis, and Reporting Technology |
| SMB | Server Message Block or Small to Midsize Business |
| SMTP | Simple Mail Transfer Protocol |
| SNMP | Simple Network Management Protocol |
| SoDIMM | Small Outline Dual Inline Memory Module |
| SOHO | Small Office/Home Office |
| SP | Service Pack |
| SPDIF | Sony-Philips Digital Interface Format |
| SPGA | Staggered Pin Grid Array |
| SRAM | Static Random Access Memory |
| SSH | Secure Shell |
| SSID | Service Set Identifier |
| SSL | Secure Sockets Layer |
| SSO | Single Sign-On |
| ST | Straight Tip |
| STP | Shielded Twisted Pair |
| SXGA | Super Extended Graphics Array |
| TB | Terabyte |
| TCP | Transmission Control Protocol |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
