dos

(redirected from disk operating system)
Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Encyclopedia, Wikipedia.
See: dower
References in periodicals archive ?
In those days, with few exceptions, the software was designed to work on the disk operating system (DOS).
The nation's biggest-selling computer disk operating system (translation for DOS), which is celebrating its 10th anniversary, has quashed rumors of its anticipated obsolescence.
S/T 3 requires an IBM PC with 128K, of main storage, at least one floppy-disk drive, an 80-character display, and an IBM Disk Operating System.