GW-BASIC was a dialect of BASIC developed by Microsoft from BASICA, originally for Compaq. It is compatible with Microsoft/IBM BASICA, but was disk based and did not require the ROM BASIC. It was bundled with MS-DOS operating systems on IBM PC compatibles by Microsoft. Microsoft also sold a BASIC compiler, BASCOM, compatible with GW-BASIC, for applications requiring more speed. The language was suitable for simple games, business programs and the like. Since it was included with most versions of MS-DOS, it was also an inexpensive way for many would-be programmers to learn the fundamentals of computer programming.with the release of MS-DOS 5.0, GW-BASIC's place was eventually taken by QBasic, a cut-down version of the separately available QuickBASIC compiler.
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