Search results
Results From The WOW.Com Content Network
For example, MS-DOS 4, released in July 1988, was followed by DR DOS 5.0 in May 1990. MS-DOS 5.0 came in April 1991, and DR DOS 6.0 was released the following June. [90] These products are collectively referred to as "DOS", even though "Disk Operating System" is a generic term used on other systems unrelated to the x86 and IBM PC.
This is the first MS-DOS version Microsoft offered in a shrink wrap packaged product for smaller OEMs or system builders. [264] Apricot Computers pre-announces MS-DOS 4.0, the first multitasking version. Apricot will sell MS-DOS 4.0 to European customers as the controlling program for network servers that support a new family of Apricot ...
Originally MS-DOS was designed to be an operating system that could run on any computer with a 8086-family microprocessor.It competed with other operating systems written for such computers, such as CP/M-86 and UCSD Pascal.
Is the first MS-DOS 5.00 Builds to have Task Swapper Build 392b Build 392b is MS-DOS 5.00 Beta 2 Build. Build 409c Build 409c is December 1990 build of MS-DOS 5.00. MS-DOS 5 Beta Command.com: Build 432 Build 432 is January 1991 build of MS-DOS 5.00. Build 460 Build 460 is late January 1991 build of MS-DOS 5.00 dated January 30, 1991 Build 490
In all 32-bit (IA-32) editions of the Windows NT family since 1993, DOS emulation is provided by way of a virtual DOS machine (NTVDM). 64-bit (IA-64 and x86-64) versions of Windows do not support NTVDM and cannot run 16-bit DOS applications directly; third-party emulators such as DOSbox can be used to run DOS programs on those machines.
Virtual DOS machines can operate either exclusively through typical software emulation methods (e.g. dynamic recompilation) or can rely on the virtual 8086 mode of the Intel 80386 processor, which allows real mode 8086 software to run in a controlled environment by catching all operations which involve accessing protected hardware and forwarding them to the normal operating system (as exceptions).
86-DOS (a.k.a. QDOS, created 1980), an operating system developed by Seattle Computer Products for its 8086-based S-100 computer kit, heavily inspired by CP/M; Concurrent DOS (a.k.a. CDOS, Concurrent PC DOS and CPCDOS) (since 1983), a CP/M-86 and MS-DOS 2.11 compatible multiuser, multitasking DOS, based on Concurrent CP/M-86 developed by Digital Research
Its first release was version 3.31, named so that it would match MS-DOS's then-current version. [2] DR DOS 5.0 was released in 1990 as the first to be sold in retail; it was critically acclaimed [3] and led to DR DOS becoming the main rival to Microsoft's MS-DOS, [4] who quickly responded with its own MS-DOS 5.0 but releasing over a year later. [5]