Definitions for MS DOSˈɛmˌɛs ˈdɔs, -ˈdɒs
This page provides all possible meanings and translations of the word MS DOS
Random House Webster's College Dictionary
MS DOS*ˈɛmˌɛs ˈdɔs, -ˈdɒs
a microcomputer operating system.
Category: Computers, Trademark
The New Hacker's Dictionary
[MicroSoft Disk Operating System] A clone of CP/M for the 8088 crufted together in 6 weeks by hacker Tim Paterson at Seattle Computer Products, who called the original QDOS (Quick and Dirty Operating System) and is said to have regretted it ever since. Microsoft licensed QDOS in order to have something to demo for IBM on time, and the rest is history. Numerous features, including vaguely Unix-like but rather broken support for subdirectories, I/O redirection, and pipelines, were hacked into Microsoft's 2.0 and subsequent versions; as a result, there are two or more incompatible versions of many system calls, and MS-DOS programmers can never agree on basic things like what character to use as an option switch or whether to be case-sensitive. The resulting appalling mess is now the highest-unit-volume OS in history. Often known simply as DOS, which annoys people familiar with other similarly abbreviated operating systems (the name goes back to the mid-1960s, when it was attached to IBM's first disk operating system for the 360). The name further annoys those who know what the term operating system does (or ought to) connote; DOS is more properly a set of relatively simple interrupt services. Some people like to pronounce DOS like “dose”, as in “I don't work on dose, man!”, or to compare it to a dose of brain-damaging drugs (a slogan button in wide circulation among hackers exhorts: “MS-DOS: Just say No!”). See mess-dos.
MS-DOS is an operating system for x86-based personal computers mostly developed by Microsoft. It was the most commonly used member of the DOS family of operating systems, and was the main operating system for IBM PC compatible personal computers during the 1980s to the mid-1990s, when it was gradually superseded by operating systems offering a graphical user interface, in various generations of the Microsoft Windows operating system. MS-DOS resulted from a request in 1981 by IBM for an operating system to use in its IBM PC range of personal computers. Microsoft quickly bought the rights to 86-DOS from Seattle Computer Products, and began work on modifying it to meet IBM's specification. IBM licensed and released it in August 1981 as PC DOS 1.0 for use in their PCs. Although MS-DOS and PC DOS were initially developed in parallel by Microsoft and IBM, in subsequent years the two products went their separate ways. During its life, several competing products were released for the x86 platform, and MS-DOS went through eight versions, until development ceased in 2000.
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