| Acronym | Meaning |
| RTF | Rich Text Format |
| BSD | Berkeley Software (System) Distribution (Design) |
| S-HTTP | Secure HTTP |
| PQDIF | Power Quality Data Interchange Format |
| W3C | World Wide Web Consortium |
| CLEC | Competitive Local Exchange Carriers |
| ST506/412 | Seagate Technologies 506 And 412 Controller (older Technology) |
| FLOPS | Floating-point Operations Per Second |
| PKI | Public Key Infrastructure |
| MOO | Mud, Object Oriented |