| Acronym | Meaning |
| PKI | Public Key Infrastructure |
| CMYK | Cyan Magenta Yellow Black (Key) |
| DSTN | Double-layer Supertwist Nematic. (in Passive-matrix LCD Technology) |
| NVRAM | Non-Volatile RAM |
| PMS | Pantone Matching System |
| HFS | Hierarchical Filing System |
| MMDS | Multichannel Multipoint Distribution System |
| DOS | Denial-of-Service |
| DAO | Disk At Once |
| PAD | Portable Application Description |