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86-DOS (a.k.a. QDOS, created 1980), an operating system developed by Seattle Computer Products for its 8086-based S-100 computer kit, heavily inspired by CP/M; Concurrent DOS (a.k.a. CDOS, Concurrent PC DOS and CPCDOS) (since 1983), a CP/M-86 and MS-DOS 2.11 compatible multiuser, multitasking DOS, based on Concurrent CP/M-86 developed by Digital Research
Originally MS-DOS was designed to be an operating system that could run on any computer with a 8086-family microprocessor.It competed with other operating systems written for such computers, such as CP/M-86 and UCSD Pascal.
1979 (as DOS/VSE) DOS/360 DOS/VS: 6.3 May 17, 2022: Monthly license fee Proprietary: IBM Z: VxWorks: Wind River Systems: 1987 VRTX: 7 March 2014: Paid Proprietary: Embedded real-time system Windows (classic 9x family) Microsoft: 1995 MS-DOS: Windows Me (Win 4.90.3000) 2000: Discontinued Proprietary: Personal computer, media center Windows ...
DOS: 1.1 Genode: AGPL Microkernel C++ 1:1 Genode Haiku: MIT: Hybrid C, C++ BeOS: No TiltOS: House: BSD Haskell: own/original No KolibriOS: GPL Monolithic ASM: MenuetOS: No MenuetOS: Menuet 64, commerce excluded Monolithic ASM own/original No KolibriOS GNU: GPL
FreeDOS (formerly PD-DOS) is a free software operating system for IBM PC compatible computers. It intends to provide a complete MS-DOS-compatible environment for running legacy software and supporting embedded systems. [6] FreeDOS can be booted from a floppy disk or USB flash drive [7] [8] and is designed to run well under virtualization or x86 ...
DOS (/ d ɒ s /, / d ɔː s /) is a ... Microsoft and IBM began developing OS/2 as an alternative. [9] The two companies later had a series of disagreements over two ...
Disk Operating System/360, also DOS/360, or simply DOS, is the discontinued first member of a sequence of operating systems for IBM System/360, System/370 and later mainframes. It was announced by IBM on the last day of 1964, and it was first delivered in June 1966. [ 1 ]
DR-DOS [nb 1] is a disk operating system for IBM PC compatibles, ... [74] thereby also improving the integration of alternative command line shells such as 4DOS. ...