Question

Hard disk is known as the brain of a computer. *
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Answer 1

Answer:

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The CPU or processor is the "brain" of the computer. ... It temporarily stores your computer's activities until they are transferred and stored permanently in your hard disk when you shut down or restart." RAM is measured in gigabytes (GB), and the average modern computer has between 4-8 GB of RAM.

Answer 2

Explanation:

The Motherboard is the main circuit board for the computer, containing both soldered, nonremovable components along with sockets or slots for components that can be removed. The motherboard holds the CPU, RAM and ROM chips, etc. The Central Processing Unit (CPU) is the "brain" of the computer.