This article is about disk operating systems in the broadest sense. For the disk operating system used by IBM PC compatibles, see DOS. For IBM mainframe operating systems, see DOS/360 and successors.
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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, and a means for loading and running programs stored on that disk. Strictly speaking, 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.[citation needed]
Disk operating systems for mainframes, minicomputers, microprocessors, and home computers are usually loaded from the disks as part of the boot process.
and 23 Related for: Disk operating system information
operatingsystems, DOS is a platform-independent acronym for diskoperatingsystem, whose use predates the IBM PC. Dozens of other operatingsystems also...
OperatingSystem) Puffin OS Convergent Technologies OperatingSystem (CTOS) – later acquired by Unisys Cromemco DOS (CDOS) – a DiskOperatingsystem compatible...
This is a list of diskoperatingsystems in which the acronym DOS is used to form their names. Many of these are simply referred to as "DOS" within their...
that the operatingsystem reads before any other part of the disk. Each partition then appears to the operatingsystem as a distinct "logical" disk that uses...
GLaDOS (Genetic Lifeform and DiskOperatingSystem) is a fictional character from the video game series Portal. The character was created by Erik Wolpaw...
machines. Other operatingsystems used on IBM S/360 series mainframes included systems developed by IBM: DOS/360 (DiskOperatingSystem), TSS/360 (Time...
MDOS (short for Myarc DiskOperatingSystem) is an operatingsystem commercialized by Myarc. It was designed and implemented specifically for the Geneve...
DOS, and at least partially compatible diskoperatingsystems. It does not include the many other operatingsystems called "DOS" which are unrelated to IBM...
directory information for the operatingsystem. The low-level format of floppy disks (and early hard disks) is performed by the disk drive's controller. For...
TRSDOS (which stands for the Tandy Radio Shack DiskOperatingSystem) is the operatingsystem for the Tandy TRS-80 line of eight-bit Zilog Z80 microcomputers...
Computer operatingsystems (OSes) provide a set of functions needed and used by most application programs on a computer, and the links needed to control...
Disk Utility is a system utility for performing disk and disk volume-related tasks on the macOS operatingsystem by Apple Inc. The functions currently...
bootable disk, with code that starts the operatingsystem loading sequence, is not encrypted. Some hardware-based full disk encryption systems can truly...
open-source emulator which runs software for MS-DOS compatible diskoperatingsystems—primarily video games. It was first released in 2002, when DOS technology...
in the history of 16-bit x86 DOS-family diskoperatingsystems from 1980 to present. Non-x86 operatingsystems named "DOS" are not part of the scope of...
The Sophisticated OperatingSystem, or SOS (/sɔːs/), is the primary operatingsystem of the Apple III computer. SOS was developed by Apple Computer and...
hobbyist operatingsystem is one of the more involved and technical options for a computer hobbyist. The definition of a hobby operatingsystem can sometimes...
backups. Before hard disks became affordable to the general population, floppy disks were often used to store a computer's operatingsystem (OS). Most home...
FlexOS is a discontinued modular real-time multiuser multitasking operatingsystem (RTOS) designed for computer-integrated manufacturing, laboratory, retail...
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