What does BIOS stand for?

Options

A. Basic Internal Output System
B. Basic Intra Operating System
C. Basic Internal Organ System
D. Basic Input Output System

Answer

D

Explanation

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