DOS: Difference between revisions
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DOS by itself had no graphical interface; instead, if one was desired, users had to buy one seperately. Several GUIs were available for DOS, but [[Windows]] displaced them all with [[wp:Windows 3.0|version 3]]. DOS was still present in Windows 95, 98, and Me, but is totally absent from all NT-based versions (including NT, 2000, XP, Vista, and Windows 7), instead being emulated (via [[wp:Virtual DOS machine|NTVDM]] and [[wp:cmd.exe|cmd.exe]]).
Early versions of MS-DOS and PC-DOS included a [[BASIC]] interpreter (basic.exe), followed by [[BASICA]], [[wp:GW-BASIC|GW-BASIC]], and finally [[QuickBASIC#QBasic|QBasic]]. (QBasic wasn't installed by default under Windows 9x; it had to be copied from the install media.) There are compilers and/or interpreters for pretty much every programming language available for DOS.
DOS was considered a synonym of '''OS''' in the past.There have been a number of operating systems called "DOS", besides the ones discussed here, many of which are completely different systems. (For a fairly complete list, see [[wp:DOS (disambiguation)|the Wikipedia disambiguation page]].)
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