| Technology Archive Reference - S | |
| SACD | Super Audio Compact Disc |
| SAP | Service Advertising Protocol (Novell) |
| SBI | Synchronous Backplane Interface |
| SCO | Santa Crux Operations (SCO-Unix) |
| SDF | Space Delimited Format/File (suited for numeric data) |
| SED | Surface-conduction electron-Emitter Display |
| SEP | Sequential Exchange Protocol |
| SID | Symbolic Interactive Debugger (Hewlett Packard Enterprise subsidiary - Cray, Inc.) |
| SIO | Serial I/O (Atari 8-Bit computers) |
| SLED | Single Large Expensive Disk (mainframe storage technology, replaced by RAID) |
| SLT | Solid Logic Technology (IBM) |
| SMPGA | Surface Mount PGA |
| SNOBOL | StriNg Oriented and symBOlic Language (developed by AT&T in 1962) |
| SPA | Software Publishers Association (merged with SIIA) |
| SPT | Sectors Per Track (disk storage) |
| SRTP | Sequenced Routing Table Protocol |
| SS6 | Signaling System 6 (an international telecommunications standard), previous version SS5 |
| SVA | Shared Virtual Area |
| SEM-E | Standard Electronics Module format E (military/avionics usage) |
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