| Acronym | Meaning |
| A/D | Analog To Digital |
| UMB | Upper Memory Block |
| POSIX | Portable Operating System Interface For UNIX |
| GM | General MIDI |
| DMA | Direct Memory Access |
| SNA | Systems Network Architecture |
| CLEC | Competitive Local Exchange Carriers |
| MATHML | Mathematical Markup Language |
| FLOPS | Floating-point Operations Per Second |
| AOL | America Online |