| Acronym | Meaning |
| UMB | Upper Memory Block |
| PIM | Personal Information Manager |
| VMS | Virtual Memory System |
| MAN | Metropolitan Area Network |
| RISC | Reduced Instruction-Set Computing |
| MODEM | Modulator/Demodulator |
| SLIP | Serial Line Internet Protocol |
| WSDL | Web Services Description Language |
| DSLAM | Digital Subscriber Line Access Multiplexer (Module) |
| DAC | Digital-to-Analog Converter |