86-DOS

From WE Computers Museum
Revision as of 00:23, 12 August 2023 by Jenni (talk | contribs) (oops - fix)
86-DOS.png
86-DOS
Developer Seattle Computer Products
Publisher Seattle Computer Products
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
Added to
Museum
Not yet

86-DOS, originally QDOS (Quick and Dirty Operating System) was an operating system by Seattle Computer Products.

It was the basis of MS-DOS and PC DOS, as well as the other DOS variants.

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 when version 1.10 was released on July 21, 1981. It was released under MS-DOS after its purchase by Microsoft.

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 of PC DOS

Title Released Date Added to the Museum Notes
QDOS 0.10 July 1980 Not yet.
QDOS 0.11 August 1980 Not yet.
QDOS/86-DOS 0.2 August 1980 Not yet.
86-DOS 0.3 November 15, 1980 Not yet. First version licensed to Microsoft.
86-DOS 0.33 December 1980 Not yet.
86-DOS 0.34 December 29, 1980 Not yet.
86-DOS 0.42 February 25, 1981 Not yet.
86-DOS 0.56 March 23, 1981 Not yet.
86-DOS 0.60 March 27, 1981 Not yet.
86-DOS 0.74 April 15, 1981 Not yet.
86-DOS 0.75 April 17, 1981 Not yet.
86-DOS 0.76 April 23, 1981 Not yet.
86-DOS 0.80 April 27, 1981 Not yet.
86-DOS 1.00 April 28, 1981 Not yet.
86-DOS 1.01 May 12, 1981 Not yet.
86-DOS 1.10 July 21, 1981 Not yet. Purchased by Microsoft and renamed MS-DOS
86-DOS 1.14 October or November 1981 Not yet.