| Abbreviation | Definition |
|---|---|
| SDLT | Super Digital Linear Tape |
| SDM3G13 | Serializer and Deserializer Macro, 3.3GBits/second, 0.13 µm Technology |
| SDM3G14 | Serializer and Deserializer Macro, 3.2GBits/second, 0.14 µm Technology |
| SDM6G13 | Serializer and Deserializer Macro, 6.25 GBits/second, 0.13 µm Technology |
| SDRAM | Standard Dynamic Random Access Memory |
| SDSF | System Display and Search Facility |
| SDU | Service Data Unit |
| SDXC | Secure Digital Extended Capacity |
| SE | Simple Electronics |
| SE | Single-Ended |
| SEC | SECtor |
| SEC | Single Edge Contact |
| SECAM | Séquentiel Couleur Avec Mémoire |
| SECC | Single Edge Cartridge Cpu |
| SECC | Single Edge Contact Connector |
| SED | Secure Encryption Device |
| SED | Surface-conduction Electron-emitter Display |
| SEDA | Staged Event Driven Architecture |
| SEM | SmartStream Encryption Modulator |
| SEPAM | Square D Electrical Protection And Monitoring |