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Microsoft’s Altair BASIC interpreter, its later ports, expansions and dialects (like PC BASIC, Commodore BASIC). Use [applesoft-basic] for the Applesoft dialect specifically.

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What is the use of the variable `B%` in DONKEY.BAS written by Bill Gates?

DONKEY.BAS, a video game written in 1981, was developed by Microsoft co-founder Bill Gates and early employee Neil Konzen. We can experience the game here and view the source code of the game (only 13 …