PL/P

The PL/P programming language (an acronym of Programming Language for Prime (computers)) is a medium-level language developed by Prime Computer to serve as their second primary operating system programming language after Fortran IV.

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Additions to the PRIMOS operating system for Prime 50 Series computers was written mostly in PL/P in later years. Certain PRIMOS modules written during PRIMOS's early years in Fortran IV were rewritten in PL/P. PL/P was the most widespread compiled programming language used for commercial PRIMOS applications, outpacing the use of the Prime C compiler, the CPL scripting language, and the Fortran IV compiler in commercial applications.

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Language: A language is a system of expression and communication. Individual languages use sound, gesture, and other means to express and communicate concepts, emotions, ideas, and thoughts. Expressions of a language are analysable into words, whose meanings are usually conventional. The word "language" is ...

Prime Computer: Prime Computer was a Natick, Massachusetts-based producer of minicomputers from 1972 until 1992....

Operating system: In computing, an operating system (OS) is the system software responsible for the direct control and management of hardware and basic system operations. Additionally, it provides a foundation upon which to run application software such as word processing programs and web browsers....

PL/P related Images and Photos (experimental)

Winter in Nice Poster Advertising P.L.M Trains

Squid Pl.2 from "Histoire Naturelle Generale Et Particuliere Des Cephalopodes Acetabuliferes"