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  1. What does BIOS stand for?
    1. Basic Internal Output System
    2. Basic Intra Operating System
    3. Basic Internal Organ System
    4. Basic Input Output System
Correct Option: D

In IBM PC compatible computers, the Basic Input/Output System (BIOS), is the de facto standard defining a firmware interface. The name originated from the Basic Input/Output System used in the CP/ M operating system in 1975.



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