MS-DOS 1.25, the equivalent of PC-DOS 1.10, was the first version licensed to OEMs beyond IBM or Seattle Computer Products. Some vendors labeled their versions of MS-DOS with different names and version numbers.

Feb 13, 2021 · MS-DOS 1.x. Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Microsoft purchased it and licensed it to IBM for use with Microsoft's IBM PC language products. In 1982, Microsoft began licensing DOS to other OEMs that ported it to their custom x86 hardware and IBM PC ...

PC-DOS 1.x. IBM PC-DOS was an IBM branded version of MS-DOS licensed from Microsoft for use on the IBM PC system. Versions of PC-DOS paralleled that of MS-DOS up until version 6.1, where PC-DOS was independently maintained by IBM up until 7.1, the last version.

Dec 9, 1993 · DOOM 1.0. Doom is the original fully immersive 3-D first person shooter from ID software.

86-DOS 1.00. 86-DOS is a "quick and dirty" operating system clone of CP/M created by Seattle Computer Products for their 8086 S-100 systems. It was later bought by Microsoft and used as the basis for IBM PC-DOS and MS-DOS

Jan 9, 2025 · So, recently I found the source code of MS-DOS 1.25, 2.0 and 4.0 hanging around on github: https://github.com/microsoft/MS-DOS And I was wondering, is it possible to build the source code right and be able to use it on a Classic x86 PC?

Feb 3, 2019 · Can someone give me a emulator for the 86-DOS 1.0 [SCP OEM] [SCP Tarbell] (4-30-1981) (8 inch SSSD) and the 86-DOS 1.14 [SCP OEM] [SCP Tarbell] (12-11-1981) (8 inch SSSD) disks?

Microsoft had long planned that MS-DOS "4" would be a multitasking-capable operating system, but IBM had insisted on creating a new version of regular DOS for use with their PS/2 computers. The below versions, as released to the consumer market, are based on DOS 3.3x and IBM's PC-DOS 4.0 enhancements.

Jul 6, 2018 · ImageDisk requires an IBM PC compatible running DOS or Win9x. On Winworld, ImageDisk files are used for non-DOS disks and MS/PC-DOS 1.x formatted disks. It also duplicates some primitive copy protection schemes.

Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Microsoft purchased it and licensed it to IBM for use with Microsoft's IBM PC language products.