QBasic

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QBasic, aka Quick Beginners All purpose Symbolic Instruction Code, is an open source programming language created in 1991.

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QBasic (Quick Beginners All purpose Symbolic Instruction Code) is an IDE and interpreter for a variety of the BASIC programming language which is based on QuickBASIC. Code entered into the IDE is compiled to an intermediate representation, and this IR is immediately interpreted on demand within the IDE. It can run under nearly all versions of DOS and 32-bit versions of Windows, or through emulation via DOSBox/DOSEMU on Linux, FreeBSD, and 64-bit versions of Windows. Read more on Wikipedia...

QBasic Wikipedia page
QBasic docs
QBasic first developed in Microsoft
file extensions for QBasic include BAS and bas
Explore QBasic snippets on Rosetta Code
Pygments supports syntax highlighting for QBasic
See also: (6 related languages)QuickBASIC, GW-BASIC, QB64, Microsoft Small Basic, Linux, FreeBSD

Example from hello-world:


PRINT "Hello World"

QBasic Keywords

ACCESS ALIAS ANY APPEND AS BASE BINARY BYVAL CASE CDECL DOUBLE ELSE ELSEIF ENDIF INTEGER IS LIST LOCAL LONG LOOP MOD NEXT OFF ON OUTPUT RANDOM SIGNAL SINGLE STEP STRING THEN TO UNTIL USING WEND

Feature	Supported	Token	Example
Comments	✓
Line Comments	✓
Integers	✓
Floats	✓
Strings	✓	"	"Hello world"
Print() Debugging	✓	PRINT

QBasic - Programming language

Language features