1. Acronym for disk operating system. A generic term describing any operating system that is loaded from disk devices when the system is started or rebooted. The term originally differentiated between disk-based systems and primitive microcomputer operating systems that were memory-based or that supported only magnetic or paper tape.
2. See MS-DOS.
(acronym for disc operating system) Computer operating system specifically designed for use with disc storage; also used as an alternate name for a particular operating system, MS-DOS.
An operating system that is on a disk; Also called: disk operating system.
Diskovni operativni sistem.