Network Operating System
(NOS) The operating system on Control Data Corporation's Cyber Computer.
network operating system
(NOS) An operating system which includes software to communicate with other computers via a network. This allows resources such as files, application programs, and printers to be shared between computers.
Examples are Berkeley Software Distribution Unix, Novell, LAntastic, MS LAN Manager.
[Is there a specific OS called "Network Operating System"?]