86-DOS

86-DOS
A sample 86-DOS session (simulated)
DeveloperSeattle Computer Products / Tim Paterson
Written in8086 assembly language
OS familyDOS
Working stateHistoric, unsupported
Initial release1980; 44 years ago (1980)
Latest release86-DOS 1.10 / July 1981; 43 years ago (1981-07)
Marketing targetS-100-based micro-computers with 8086 processor
Available inEnglish
Package managerN/A
Platformsx86
Kernel typeMonolithic kernel
Influenced byCP/M
Default
user interface
Command-line interface (COMMAND.COM)
LicenseProprietary
Succeeded byMS-DOS, IBM PC DOS

86-DOS (known internally as QDOS,[1] for Quick and Dirty Operating System) is a discontinued operating system developed and marketed by Seattle Computer Products (SCP) for its Intel 8086-based computer kit.

86-DOS shared a few of its commands with other operating systems such as OS/8 and CP/M, which made it easy to port programs from the latter. Its application programming interface was very similar to that of CP/M. The system was licensed and then purchased by Microsoft and developed further as MS-DOS and PC DOS.[2]

  1. ^ Paterson, Tim (2018-08-05). "The Original DOS and the Old Days". YouTube. Mountain View, CA, United States: Vintage Computer Federation. Retrieved 2022-03-01.
  2. ^ Cite error: The named reference Beley_1986_MS-DOS_Encyclopedia was invoked but never defined (see the help page).