Prime Computer, Inc. was a Natick, Massachusetts-based producer of minicomputers from 1972 until 1992. The alternative spellings "PR1ME" and "PR1ME Computer" were used as brand names or logos by the company.
The company operating system, PRIMOS was originally written mostly in the Fortran IV programming language with some assembler. Subsequently the PL/P and Modula-2 languages were used in the Kernel. A number of new PRIMOS utilities were written in SP/L which was similar to PL/P.