PC DOS 1.0: Difference between revisions
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'''PC DOS 1.0''' is the first iteration of the [[PC DOS]] product line by [[Microsoft]] and [[IBM]]. It was extended into [[MS-DOS]], which itself was the basis for operating systems packaged by [[Compaq]], [[Texas Instruments]], and [[Zenith]]. | '''PC DOS 1.0''' is the first iteration of the [[PC DOS]] product line by [[Microsoft]] and [[IBM]]. It was extended into [[MS-DOS]], which itself was the basis for operating systems packaged by [[Compaq]], [[Texas Instruments]], and [[Zenith]]. | ||
It was preceded by [[86-DOS|86-DOS 1.0]] and was followed by [[PC DOS 2.0]]. | |||
==History== | ==History== | ||
Latest revision as of 11:10, 25 October 2023
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| PC DOS 1.0 | |
| Developer | Microsoft |
|---|---|
| Publisher | IBM |
| Platforms | x86 |
| Released | PC DOS 1.0: August 12, 1981 MS-DOS 1.24: March 1982 PC-DOS 1.10: May 7, 1982 MS-DOS/Z-DOS 1.01: May, 1983 TI BOOT V. 1.13: August 1983 Compaq-DOS 1.12: November 1983 Z-DOS 1.19: 1983 |
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PC DOS 1.0 is the first iteration of the PC DOS product line by Microsoft and IBM. It was extended into MS-DOS, which itself was the basis for operating systems packaged by Compaq, Texas Instruments, and Zenith.
It was preceded by 86-DOS 1.0 and was followed by PC DOS 2.0.
History
Tim Paterson developed an operating system for Seattle Computer Products based heavily on CP/M. The company released two versions of QDOS in July and August 1980. The latter was followed up by a version named 86-DOS, which was also released in August 1980.
It was then licensed by Microsoft. Seattle Computer Products developed twelve versions of Q-DOS that were licensed by Microsoft and sublicensed to IBM through Microsoft from November 15, 1980, to May 12, 1981.
Microsoft then purchased Q-DOS. Version 1.10 was released on July 21, 1981. Microsoft licensed 86-DOS 1.01 to IBM, which released it as PC DOS 1.0 on August 12, 1981.
Seattle Computer Products released one last version, 1.14, in the fourth quarter of 1981.
Versions
PC DOS version 1.0 was released on August 12, 1981.
PC DOS 1.10 was the basis for MS-DOS 1.24, which were both released in 1982.
1983 saw MS-DOS 1.25, which was the basis for DOS distributions by manufacturers other than IBM. It was used as the basis for a DOS by Compaq as Compaq-DOS 1.12, by Texas Instruments as TI BOOT V. 1.13, by Zenith as Z-DOS 1.01 and 1.19. These were also alternately packaged as MS-DOS 1.01.
