| Acronym | Meaning |
| HDML | Handheld Device Markup Language |
| XGA | Extended Graphics Array (Adapter) |
| FDD | Floppy Disk Drive |
| ATL | Active (ActiveX) Template Library |
| PROM | Programmable Read-Only Memory |
| T3 | T-Three - Carrier Signal (communications) |
| MAU | Multistation Access Unit |
| APWG | Anti-Phishing Working Group |
| HAL | Hardware Abstraction Layer |
| WIMP | Windows, Icons, Menus And Pointing Device |