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IT Terminology Dictionary: Letter P
| Abbreviation | Decoding | Description | Group | Note | Related terms |
|---|---|---|---|---|---|
| PAgP | Port Aggregation Protocol | A protocol for grouping ports together. | Network & Infrastructure | To increase speed and keep the cable from hanging loose. | |
| PBKDF2 | Password-Based Key Derivation Function 2 | A function for deriving a key from a password. | Security | Specifically slowed down to make cracking harder. | |
| PCIe | Peripheral Component Interconnect Express | An interface for connecting high-speed devices. | General | Graphics cards, SSDs, network cards. Basically, almost everything you plug into the motherboard. | |
| Portable Document Format | A format for presenting documents. | General | Independent of platform and applications. Used everywhere. | ||
| PHP | PHP: Hypertext Preprocessor | A programming language that runs on the server and creates web pages before sending them to the user. Most websites on the internet are written in it. | Web Development | PHP is like the grandfather among programming languages: old, wise, widely used, but constantly grumbling at the youth. If a site runs on PHP, even if it crashes, it will crash with dignity and show you a beautiful error with a number. And most importantly — it still feeds half the world's developers. | |
| PID | Process ID | A unique process identifier. | General | So you can find and terminate a stuck process. It's like `Vasya` (PID) has overeaten and fallen asleep — time to carry him out. | |
| PKI | Public Key Infrastructure | A public key infrastructure. | Security | Management of digital certificates and keys. | |
| PoC | Proof of Concept | A proof of concept. | Management & Processes | Testing an idea in practice to see if it works at all. | |
| PPTP | Point-to-Point Tunneling Protocol | An outdated VPN protocol. | Network & Infrastructure | Now considered insecure. | |
| PROJ | Coordinate transformation library | Converts coordinates between different systems. | Data | Used in GIS. | |
| PROV-O | Provenance Ontology | Describes the provenance and history of data. | Data | Where the data came from and how it was obtained. | |
| PSU | Power Supply Unit | A power supply unit. | General | Converts AC to DC and powers the computer. |
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