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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
MS DOS, originally code named "Chess," took root in 1980 when IBM asked Microsoft to produce an OS to run on its computers. Word for Windows was released in 1989, and with in four years had ...
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.
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.
This was addressed not long after with the release of DOS 3.0. When formatted with DOS 3.0, the disk held 40 tracks of 27 sectors, up from 18 on DOS 2.0. Each sector holds 128 bytes, for a total of 133,120 bytes of storage, up from DOS 2.0's 92,160. In DOS 2.0, a 10-bit number was used to store sector numbers in the directory.
Sets the path to be searched for data files or displays the current search path. The APPEND command is similar to the PATH command that tells DOS where to search for program files (files with a .COM, . EXE, or .BAT file name extension). The command is available in MS-DOS versions 3.2 and later. [1]