| Abbreviation | Definition |
|---|---|
| NAT | Network Address Translation |
| NAVI-D | New Analog Video Interface - Digital |
| NAVI-P | New Analog Video Interface - Portable |
| NAVI-V | New Analog Video Interface |
| NCQ | Native Command Queuing |
| NDIS | Network Driver Interface Specification |
| NDR | National Drivers Register |
| NIC | Network Interface Card |
| NLA | Network Location Awareness |
| NPZ | no problem/IT MEENZ 'NO POZESSION' |
| NS | Noise Suppression |
| NTFS | New Technology File System (Windows NT) |
| NTLDR | Windows New Technology LoaDeR |
| NTSC | National Television System Committee |
| NUMA | Non-Uniform Memory Access |
| NVRAM | Non-Volatile Random Access Memory |
| NWAD | North Wales Advanced Drivers |
| OAL | OEM (Original Equipment Manufacturer) Adaptation Layer |
| OCA | Online Crash Analysis |
| OCUR | OpenCable Unidirectional Receiver |