What programming languages did bill gates develop?

Bill Gates wrote a version of the Beginner's All Purpose Symbolic Instruction Code, or BASIC, programming language for the MITS Altair microcomputer. Gates, who was an undergraduate student at Harvard University, developed this language with Paul Allen, and it was the first product Microsoft sold. read more

Bill Gates, along with Paul Alan, developed the interpreted Altair BASIC in 1975, which evolved into Microsoft BASIC by 1976. Up until 1981, Gates reviewed every line and often rewrote portions of code produced by Microsoft, however it's not clear what other languages he helped develop during that time, if any. read more

Altair BASIC is a discontinued interpreter for the BASIC programming language that ran on the MITS Altair 8800 and subsequent S-100 bus computers. It was Microsoft's first product (as Micro-Soft), distributed by MITS under a contract. read more