FreeBASIC (http://www.freebasic.net/) is the OpenSource BasicLanguage front end to the GnuCompilerCollection, mostly compatible with MS QuickBasic.

Simple and compiled, it does quite well on the GreatComputerLanguageShootout.

Main features are listed on a wiki:
* http://www.freebasic.net/wiki/wikka.php?wakka=CompilerFeatures
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CategoryProgrammingLanguage