By considering the functions performed by various components, a computer can be represented as a collection of logical components as in Figure 1.3. The main hardware components of a modern computer system are the central processing unit (CPU), the main memory, the secondary storage and the In put-Out put devices.
System Unit
The
system unit, or the cabinet houses most of the essential components of
the computer system such as the power supply, the motherboard, the CPU
chip, specialized chips, the system clock, RAM,...
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