P
P2P – See Peer-to-peer.
PaaS – Platform as a service is a type of cloud service that provides a platform where customers can develop, run, and manage applications.
Package manager – An application, or collection of applications, that automates the process of downloading, installing, configuring, and removing software.
Peer-to-peer – A distributed network application where the nodes in the network communicate directly with each other.
Perl – A programming language developed by Larry Wall. It was first released in 1987.
PHP – A programming language developed by Rasmus Lerdorf. It was first released in 1995.
Pixel – A physical point in a raster image or the smallest element of a computer screen (or other types of display devices).
Plankalkül – One of the first programming languages, designed by Konrad Zuse. It was first released in 1948.
Processor – See Central processing unit.
Punch card...