| Abbreviation | Definition |
|---|---|
| JS | Joy Stick |
| JST | Java Server Toolkit |
| JUNOS | Juniper Networks Operating System |
| JVE | Jet Valve Eliminator |
| K6 | AMD 6th generation microprocessor of 1997 |
| K6 | AMD Microprocessor, version 6 |
| KANO | An inexpensive computer kit (Not an acronym) |
| KARMA | Kay Algorithmic Realtime Music Architecture |
| KBB | Known Bad Board |
| KBC | KeyBoard Controller |
| KbPS | Kilobits Per Second |
| KBSD | Keyboard Backlight - Sensored Dimming |
| KCRT | Keyboard Cathode Ray Tube |
| KCS | Keyboard Controlled Sequencer |
| KCU | Keyboard Control Unit |
| KH | Komplete Hardware |
| KHAL | Kernel Hardware Abstraction Layer |
| KIM | Keep In Memory |
| KITT | Knight Industries Two Thousand |
| KLM | Key Lamp Module |