What (who) is disk operating system - definition
TYPE OF OPERATING SYSTEM
Disk Operating System; Disc operating system; Disc OS; Disk OS
disk operating system
<operating system> (DOS) The name of a number of {operating
systems} which include facilities for storing files on disk,
often used to refer to Microsoft DOS. Such a system must
handle physical disk I/O, the mapping of file names to disk
addresses and protection of files from unauthorised access (in
a multi-user system).
A DOS should present a uniform interface to different storage
device such as floppy disks, hard disks and {magnetic
tape} drives. It may also provide some kind of locking to
prevent unintentional simultaneous access by two processes to
the same file (or record).
(1998-07-08)
Disk Operating System
<operating system> (DOS) The original disk operating system
from IBM.
DOS was the low-end OS of choice on the IBM 360, the
high-end system was called just "OS". DOS had a smaller
kernel and less functionality than OS and could run on the
typical 32K 360/30 and 64K 360/40 class machines.
DOS was a successor to TOS.
(1999-01-20)
Disk operating system
A disk operating system (abbreviated DOS) is a computer operating system that resides on and can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. A disk operating system must provide a file system for organizing, reading, and writing files on the storage disk.
Wikipedia
Disk operating system
A disk operating system (DOS) is a computer operating system that resides on and can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. A disk operating system provides a file system for organizing, reading, and writing files on the storage disk. Strictly, this definition does not include any other functionality, so it does not apply to more complex OSes, such as Microsoft Windows, and is more appropriately used only for older generations of operating systems.
Disk operating systems for mainframes, minicomputers, microprocessors, and home computers are usually loaded from the disks as part of the boot process.
Examples of use of disk operating system
1. August 12 is the 25th anniversary of the IBM personal computer launch, a pairing of MS and DOS, Microsoft and the disk operating system.
2. But, worried that American authorities would accuse it of attempting to control a new market, IBM left the disk operating system (DOS) for its new PCs to a tiny new company that no one saw as a threat: Microsoft.