| Abbreviation | Definition |
|---|---|
| SMM | Surface Mount Module |
| SMND | Semiconductor Materials, Nanostructures Devices |
| SMND | Semiconductor Materials, Nanostructures & Devices |
| SMO | Servo Magneto Optical |
| SMP | Shared Memory Parallel |
| SMP | Symmetric Multi-Processors |
| SMPS | Scanning Mobility Particle Sizer |
| SMPS | Switched-Mode Power Supply |
| SMS | Small Memory System |
| SMS | System Managed Storage |
| SMX | Streaming Multiprocessors Xtreme |
| SNAC | Smart Notification Acknowledgement Console |
| SNAC | Super Nice Audio Compressor |
| SNC | Scalable Node Controller |
| SNI | Switch Network Interface |
| SOC | Server Operations Center |
| SODIMM | Small Outline Dual Inline Memory Module |
| SO-J | Small Outline J-lead |
| SOL | Serial Over LAN (Local Area network) |
| SOP | Special Order Part |