Noun
English Wikipedia has an article on:system softwareWikipedia
system software (uncountable)
(computing) The software associated with an operating system and supporting utilities, database systems etc.
Once GNU is written, everyone will be able to obtain good system software free, just like air. Richard Stallman
There is no neat distinction between operating system software and the software that runs on top of it. Jim Allchin
Qmail out of the box works fine, so people will want to use it regardless of licensing restrictions, even when the software does not ship with their system software. Wietse Venema
System software development testing could be done on the second machine, then the components of the second system were added back onto the main user system, without ever having shut it down. Source: Internet
System software error codes The first byte specifies the area of the system affected. Source: Internet
System software main System software, or systems software, is computer software designed to operate and control the computer hardware and to provide a platform for running application software. Source: Internet