| Abbreviation | Definition |
|---|---|
| NGIS | Next Generation Interconnection System |
| NHC | Notebook Hardware Control |
| NI | No Interface |
| NI | Non-Interlaced |
| NICAM | Near Instantaneous Companded Audio Multiplex |
| NIU | Not In Use |
| NKM | No Keyboard/Mouse |
| NLB | Neon Light Bulb |
| NLDM | Non Linear Delay Model |
| NLI | Nakra Labs Interface |
| NLI | Non-Linear Interface |
| NMEA | National Marine Electronics Association |
| NMPM | Negative Magnetic Permeability Media |
| NMS | Non-Metallic Seal |
| NMUG | Nanaimo Macintosh User Group |
| NMUX | NMEA (National Marine Electronics Association) Multiplexer |
| NO | Normally Open |
| NO | Not On |
| NOC | Network On Chip |
| NOFEP | No Open Front End Processor |