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Date Version Primary developer Notable introduction IBM hardware August 1980: 86-DOS 0.10 Tim Paterson: First Seattle Computer release August 1981: PC DOS 1.0 Microsoft: First IBM release IBM Personal Computer: May 1982: PC DOS 1.1 Microsoft: Double-sided disks: Upgraded IBM Personal Computer: March 1983: PC DOS 2.0 Microsoft: Hard disk drive ...
This specific version of MS-DOS is the version that is discussed here, as all other versions of MS-DOS died out with their respective systems. One version of such a generic MS-DOS (Z-DOS) is mentioned here, but there were dozens more.
PC DOS 2.0, successor of PC DOS 1.1 in 1983; PC DOS 2.1, successor of PC DOS 2.0 in 1983; PC DOS 2.11, successor of PC DOS 2.1 in 1984; It may also refer to operating systems of the Digital Research family: DOS Plus 1.0, a single-user variant of Concurrent PC DOS in 1985; DOS Plus 1.1, a single-user variant of Concurrent PC DOS in 1985
On March 25, 2014, Microsoft made the code to SCP MS-DOS 1.25 and a mixture of Altos MS-DOS 2.11 and TeleVideo PC DOS 2.11 available to the public under the Microsoft Research License Agreement, which makes the code source-available, but not open source as defined by Open Source Initiative or Free Software Foundation standards.
Windows & MS-DOS 5 Combined bundle of Windows 3.1 and MS-DOS 5. Janus is a Roman god usually depicted with two faces, here symbolizing the previously separate Windows and MS-DOS products. [2] Jastro — Windows & MS-DOS 6 Combined bundle of Windows 3.1 and MS-DOS 6. Portmanteau of Janus and Astro, the codename of MS-DOS 6. [3] Sparta, Winball ...
PC DOS 7 was released in April 1995 and was the last release of DOS before IBM software development (other than the development IBM ViaVoice) moved to Austin. The REXX programming language was added, as well as support for a new floppy disk format, XDF , which extended a standard 1.44 MB floppy disk to 1.86 MB.
Initial public release Predecessor Current stable version Release date Cost, availability Preferred license [g 1] Target system type AIX: IBM: 1986 UNIX System V Release 3 7.3 June 20, 2022: Commercial Proprietary: Server, NAS, workstation: AIX/370: IBM: 1989 IX/370: Release 2.1? Feb 22, 1991: Non-free Proprietary: IBM System/370. AIX/ESA V1 ...
OS/2 is a proprietary computer operating system for x86 and PowerPC based personal computers.It was created and initially developed jointly by IBM and Microsoft, under the leadership of IBM software designer Ed Iacobucci, [2] intended as a replacement for DOS.