The Free On-line Dictionary of Computing (30 December 2018):
Microsoft Basic
MS-BASIC
(MS-BASIC) A dialect of BASIC from Microsoft,
originally developed by Bill Gates in a garage back in the
CP/M days. It was originally known as GWBasic, then QBASIC
and finally MS-BASIC.
When the MS-DOS operating system came out, it incorporated
the GWBASIC.EXE or BASICA.EXE interpreters. GWBASIC ("Gee
Whiz") incorporated graphics and a screen editor and was
compatible with earlier BASICs.
QBASIC was more sophisticated. Version 4.5 had a full screen
editor, debugger and compiler. The compiler could also
produce executable files but to run these a utility program
(BRUN44.EXE) had to be present. Thus source code could be
kept private.
From DOS 5.0 or 6.0 onward, MS-BASIC was standard.
Version 1.1 produced stand-alone executables and could
display graphics.
Usenet newsgroup: news:comp.lang.basic.misc.
[Relationship to BASIC in ROM on first IBM PC?]
(1995-05-12)