Re: Too much credit
MS-DOS was never free. Unless you stole it.
4 posts • joined 21 Feb 2011
Your memory is shot. OS/2 was developed my Microsoft AND IBM, first released jointly in December 1987. Bill Gates was at Wembley flogging the OS during 1988.
Way before then Microsoft had UNIX System 7 running and released as XENIX for the 8086/80286 architecture.
The development of OS/2 began when IBM and Microsoft signed the "Joint Development Agreement" in August 1985. It was code-named "CP/DOS" and it took two years for the first product to be delivered.
OS/2 1.0 was announced in April 1987 and released in December. The original release is textmode-only, and a GUI was introduced with OS/2 1.1 about a year later. OS/2 features an API for controlling the video display (VIO) and handling keyboard and mouse events so that programmers writing for protected-mode need not call the BIOS or access hardware directly. In addition, development tools include a subset of the video and keyboard APIs as linkable libraries so that family mode programs are able to run under MS-DOS. A task-switcher named Program Selector is available through the Ctrl-Esc hotkey combination, allowing the user to select among multitasked text-mode sessions (or screen groups; each can run multiple programs).
Communications and database-oriented extensions were delivered in 1988, as part of OS/2 1.0 Extended Edition: SNA, X.25/APPC/LU 6.2, LAN Manager, Query Manager, SQL.
The promised graphical user interface (GUI), Presentation Manager, was introduced with OS/2 1.1 in October, 1988. It had a similar user interface to Windows 2.1, which was released in May of that year. (The interface was replaced in versions 1.2 and 1.3 by a tweaked GUI closer in appearance to Windows 3.1).
OS/2 occupied the "Intellegent Workstation" part of SAA (Systems Application Architecture) and made use of the APPC PU2.1 LU6.2 SNA network stack.
$50 BILLION being spent around a fabric of lies. The BAKSHEESH in this project must be epic.
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