Apr 25, 2024 · Today, in partnership with IBM and in the spirit of open innovation, we're releasing the source code to MS-DOS 4.00 under the MIT license.
MS-DOS 4.0 was a multitasking release of MS-DOS developed by Microsoft based on MS-DOS 2.0. Lack of interest from OEMs, particularly IBM led to it being ...
MS-DOS 4.0
Operating system
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MS-DOS 4.0 was a multitasking release of MS-DOS developed by Microsoft based on MS-DOS 2.0. Lack of interest from OEMs, particularly IBM, led to it being released only in a scaled-back form. It is sometimes referred to as European MS-DOS 4.0, as... Wikipedia
Initial release date: June 1988
Default user interface: Command-line interface (COMMAND.COM)
Developer: Microsoft
Final release: 4.10.30 / May 10, 1988; 36 years ago
OS family: DOS
Source model: Open source
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MS-DOS 4.0x ... Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Microsoft ...
Apr 30, 2024 · MS-DOS 4.0 is a multitasking operating system, developed from and downwardly compatible with MS-DOS 3.0. It supports true multitasking as well ...
IBM DOS 4.0 was announced on July 19, 1988 with immediate availability. The price was raised again, this time to $150 for a new license and $95 for an upgrade.
Apr 25, 2024 · This repo contains the original source-code and compiled binaries for MS-DOS v1.25 and MS-DOS v2.0, plus the source-code for MS-DOS v4.00 ...
Apr 29, 2024 · Releasing old files in a new-er format has caused a lot of headaches for software historians.
DOS 4.0 supported preemptive multitasking, shared memory, semaphores, advanced memory management, a session manager, imports, exports and a new executable ...
Multitasking or European MS-DOS 4 refers to an intermediate operating system between MS-DOS and OS/2 released in the mid-1980s. Unlike its predecessors and ...
MS-DOS is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, ...