What is Disk Operating System?

Disk Operating System: Here, we are going to learn about the Disk Operating System, its history, DOS as main Oss.
Submitted by Anushree Goswami, on January 30, 2021

Disk Operating System

Disk Operating System is abbreviated as DOS. A disk operating system is an operating system of a system of computer that inhibits as a feature and is capable of making use of a disk storage device, which comprises a floppy disk, hard disk drive, or optical disc.


  • At the beginning of the 1960s, a variety of mainframe and minicomputer dealers started bringing in disk operating systems and with the purpose to take advantage of disks, started advancing on-hand operating systems because disk drives turned out to be better and reasonably priced.
  • At the ending of the 1970s and 1980s, CBM DOS, which was designed for Commodore 8-bit systems, Atari DOS in support of the Atari 8-bit family, TRS-DOS in case of the TRS-80, Apple DOS in case of the Apple II, and MS-DOS in case of IBM PC, used a disk operating system, which majority of the times frequently just introduced as "DOS".

Disk Operating Systems as main OSs

A number of disk operating systems were the main operating systems in many of the system of computers, which comprises:

  • The GECOS operating system designed for the GE 600 family of computers.
  • TRSDOS was designed in support of the TRS-80 line of computers as an operating system.
  • On the Control Data Corporation (CDC) 6000 series and 7600 series, the list of disk operating systems, which are also main operating systems are:
    1. The SIPROS Operating System.
    2. Chippewa Operating System (COS)
    3. SCOPE Operating System.
    4. MACE Operating System.
    5. KRONOS operating systems.

Reference: Disk operating system

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