Question

Operating system from back up song and the main memory when the computer
is switched on​

Answer 1

Explanation:

caste prejudices were the first snag we ran up against [ change to compound]

Answer 2

Answer:

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The operating system is loaded through a bootstrapping process, more succinctly known as booting. A boot loader is a program whose task is to load a bigger program, such as the operating system. When you turn on a computer, its memory is usually uninitialized. Hence, there is nothing to run.