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A typical computer system consists of a central
processing unit (CPU), input devices, storage devices, and output devices.
The CPU consists of an arithmetic/logic unit,
registers, control section, and internal bus.
The arithmetic/logic unit carries out
arithmetical and logical operations.
The registers store data and keep track of
operations.
The control unit regulates and controls various
operations.
The internal bus connects the units of the CPU
with each other and with external components of the system.
For most computers, the principal input device
is a keyboard.
Storage devices include external floppy disc
drives and internal memory boards.
Output devices that display data include
monitors and printers.
A computer
system can be mainly divided into three parts.
They are:
i.
Hardware
ii.
Software
iii.
Live ware
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