| Acronym | Meaning |
 | OOP | Object-Oriented Programming |
| P2P | Peer To Peer |
| PC | Personal Computer |
| PCB | Printed Circuit Board |
| PCI | Peripheral Component Interconnect |
| PCI-X | Peripheral Component Interconnect Extended |
| PCMCIA | Personal Computer Memory Card International Association |
| PDA | Personal Digital Assistant |
| PDF | Portable Document Format |
| PHP | Hypertext Preprocessor |
| PIM | Personal Information Manager |
| PMU | Power Management Unit |
| PNG | Portable Network Graphic; Image Format |
| POP3 | Post Office Protocol |
| PPC | Pay Per Click |
| PPGA | Plastic Pin Grid Array |
| PPI | Pixels Per Inch |
| PPL | Pay Per Lead |
| PPM | Pages Per Minute |
| PPP | Point To Point Protocol |
| PPTP | Point-to-Point Tunneling Protocol |
| PRAM | Parameter Random Access Memory |
| PS/2 | Personal System/2 |
| QBE | Query By Example |
| RAID | Redundant Array Of Independent Disks |
| RAM | Random Access Memory |
| RDF | Resource Description Framework |
| RDRAM | Rambus Dynamic Random Access Memory |
| RGB | Red Green Blue |
| RISC | Reduced Instruction Set Computing |
| ROM | Read-Only Memory |
| RPC | Remote Procedure Call |
| RPM | Revenue Per 1,000 Impressions. (M Is The Roman Numeral For 1,000) |
| RSS | RDF Site Summary |
| RTE | Runtime Environment |
| RTF | Rich Text Fomat |
| RUP | Rational Unified Process |
| SAN | Storage Area Network |
| SATA | Serial Advanced Technology Attachment |
| SCSI | Small Computer System Interface |
| SD | Secure Digital |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SDSL | Symmetric Digital Subscriber Line |
| SEM | Search Engine Marketing |
| SEO | Search Engine Optimization |
| SIMM | Single In-Line Memory Module |
| SKU | Stock Keeping Unit |
| SLI | Scalable Link Interface |
| SMART | Self-Monitoring Analysis And Reporting Technology |
| SMB | Server Message Block |
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