Multiple choice technology operating systems

On what product did Bill Gates and Paul Allen found Microsoft?

  1. DOS

  2. Altair BASIC

  3. The MITS 816 Calculator Kit

  4. IBM punch cards
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B Correct answer
Explanation

Bill Gates and Paul Allen founded Microsoft on Altair BASIC, a BASIC interpreter for the MITS Altair 8800 microcomputer. They demonstrated it to MITS in 1975, leading to their first contract. DOS came later (1981), and neither the calculator kit nor IBM punch cards were their founding product.

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