basic disk operating system
Also found in: Acronyms.
basic disk operating system[′bā·sik ¦disk ‚äp·ə′rād·iŋ ′sis·təm]
The part of a computer's operating system that handles the transfer of data between programs and disk units and the control of files. Abbreviated BDOS.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.