systems software(n = noun.communication) system program, systems program - a program (as an operating system or compiler or utility program) that controls some aspect of the operation of a computer;
is a kind of computer program, computer programme, program, programme

alpha software, beta software, compatible software, computer software, defense information systems agency, shrink-wrapped software, software, software documentation, software engineer, software error, software package, software product, software program, software system, supervisory software, systems analysis, systems analyst, systems program