| Revision as of 23:56, 11 March 2004 editJimD (talk | contribs)Extended confirmed users747 edits add msg:disambig; clean up some writing and paragraph, add Linux/dosemu reference← Previous edit | Revision as of 19:49, 21 March 2004 edit undoSteven jones (talk | contribs)216 edits changed to a redirect to merged Dos (not all upper case)Next edit → | ||
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| {{msg:disambig}} | |||
| '''DOS''' most often stands for ], a type of ] for ] that provides the abstraction of a ] resident on the ]. | |||
| In particular, DOS is often used to refer to ] (or its variants and clones: ], ], ], ''et al.'') which among them dominated the ] operating systems market for the decade between 1985 and 1995. | |||
| MS-DOS (and the IBM PC-DOS which was licensed therefrom) was a successor to ] ('''C'''ontrol '''P'''rogram / (for) '''M'''icrocomputers) --- which was the dominant operating system for 8-bit ] and ] ] based microcomputers. | |||
| Early versions of ] were program which ran under MS-DOS and its clones. Later versions were launched under DOS but "extended" it by going into protected mode. Still later versions of MS Windows ran independently of DOS but included much of the old code such that it could run in ]s under the new OS and the lastest versions of MS Windows are continually dropping ever more of the old DOS. | |||
| Under ] its possible to run copies of DOS and many of its clones under ''dosemu'' (A Linux native virtual machine program for running ] programs). There are a number of other emulators for running DOS under various versions of UNIX, even on non-x86 platforms. | |||
| : | |||
| Prior to the development of the IBM PC compatible family of microcomputers, several other operating systems for other architectures were already known as DOS, notably: | |||
| *The DOS initial/simple operating system for the ] ] family of ]s (it later became DOS/VSE, and was eventually just called ]). | |||
| *The DOS operating system for ] ] ]s (this OS and the computers it ran on were nearly obsolete by the time PCs became common, with various descendents and other replacements). | |||
| ---- | |||
| '''DoS''' (note the lower-case middle '''o''') also stands for ]. | |||
| In the context of ], this is the situation where a system is attacked in such a manner that "normal" network communication is blocked by excessive traffic, or the system itself is rendered non-functional due to overload or caused to crash. | |||
| This is distinct from a compromised system, which may continue to operate but is put to subversive use or exposed to illicit monitoring | |||
| ---- | |||
| In ], '''DOS''' is a common acronym for '''density of states'''. | |||
| The density of states, N(E), for electronic energy levels in a solid is defined as follows: N(E)dE is the number of allowed energy levels per unit volume of the solid, in the energy range E to E+dE. | |||
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| ] | |||
Revision as of 19:49, 21 March 2004
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