platform - the combination of a particular computer and a particular operating system

computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures

software, software package, software system, package - (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory; "the market for software is expected to expand"

disk operating system, DOS - an operating system that is on a disk

UNIX, UNIX operating system, UNIX system - trademark for a powerful operating system

executive program, supervisory program, supervisor - a program that controls the execution of other programs