| Acronym | Meaning |
| NNTP | Network News Transfer Protocol |
| PIM | Personal Information Manager |
| IPX | Internetwork Packet Exchange |
| CISC | Complex Instruction Set Computing |
| I/O | Input/Output |
| URI | Uniform Resource Identifier |
| TIFF | Tagged Image File Format; Image Format |
| RUP | Rational Unified Process |
| Y2K | Year 2000 |
| WI-FI | Wireless Fidelity |