| A | B |
|---|
| NiMH | Nickel Metal Hydride |
| NLX | New Low-Profile Extended |
| NNTP | Network News Transfer Protocol |
| NTFS | New Technology File System |
| NTLDR | New Technology Loader |
| NTP | Network Time Protocol |
| NTSC | National Transmission Standards Committee |
| NVM HCI | Non-Volatile Memory Host Controller Interface |
| OCR | Optical Character Recognition |
| OEM | Original Equipment Manufacturer |
| OLED | Organic Light Emitting Diode |
| OS | Operating System |
| PAL | Phase Alternating Line |
| PAN | Personal Area Network |
| PAT | Port Address Translation |
| PATA | Parallel Advanced Technology Attachment |
| PC | Personal Computer |
| PCI | Peripheral Component Interconnect |
| PCIe | Peripheral Component Interconnect Express |
| PCI-X | Peripheral Component Interconnect Extended |
| PCL | Printer Control Language |
| PCMCIA | Personal Computer Memory Card International Association |
| PE | Preinstallation Environment |
| PGA | Pin Grid Array |
| PGA2 | Pin Grid Array 2 |
| PGP | Pretty Good Protection |
| PII | Personally Identifiable Information |
| PIN | Personal Identification Number |
| PKI | Public Key Infrastructure |
| PnP | Plug and Play |
| POP3 | Post Office Protocol 3 |
| PoS | Point of Sale |
| POST | Power On Self Test |
| POTS | Plain Old Telephone Service |
| PPM | Pages Per Minute |
| PPP | Point-to-Point Protocol |
| PPTP | Point-to-Point Tunneling Protocol |
| PRI | Primary Rate Interface |
| PRL | Preferred Roaming List |
| PROM | Programmable Read-Only Memory |
| PS/2 | Personal System/2 Connector |
| PSTN | Public Switched Telephone Network |
| PSU | Power Supply Unit |
| PVA | Patterned Vertical Alignment |
| PVC | Permanent Virtual Circuit |
| PXE | Preboot Execution Environment |
| QoS | Quality of Service |
| RADIUS | Remote Authentication Dial-In User Server |
| RAID | Redundant Array of Independent (or Inexpensive) Dis |
| RAM | Random Access Memory |
