Wiktionary
systems software
n. (alternative spelling of system software English)
WordNet
systems software
n. a program (as an operating system or compiler or utility program) that controls some aspect of the operation of a computer [syn: system program, systems program]
Usage examples of "systems software".
Numbers and schematics cascaded across it as it interrogated the gravitic systems software and test programs examined the hardware.
She punched up a directory of systems software, then worked her way down through a hierarchy of choices until she got to a list of emergency over.