| Abbreviation | Definition |
|---|---|
| KMJ | Keystone Modular Jack |
| KNOB | Kinetic Nullifying Overadjustment Button |
| KP | Killough Platform |
| KRH | Keyboard Replacement Hardware |
| KSJ | KeyStone Jack |
| KSJ-C5E | KeyStone Jack, Catategory 5E |
| KSR | Keyboard Send/Receive |
| KSS | Konami Sound System |
| KSS | Kuwait Standard Specification |
| KVL | Key Variable Loader |
| KVM | Keyboard, Video, Mouse |
| KVM | Keyboard-Video-Mouse switch |
| KVMP | Keyboard Video Mouse Peripherials |
| KYBD | KeYBoarD |
| KZ | Kol Zimrah |
| L | Inductor (circuit diagram marking) |
| L | Left |
| L | Leftmost |
| L1 | Level 1 cache |
| L2 | Level 2 cache |