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Unformatted text preview: tructions fed to the computer
through its input devices into the binary codes acceptable to the computer. 5. The output unit allows the computer system to supply the information obtained as a
result of data processing to the outside world in human acceptable (readable) form.
The output interfaces transform the information obtained as a result of data
processing from binary form to human acceptable (readable) form.
The storage unit of a computer system holds the data and instructions to be
processed, and the intermediate and final results of processing.
8. The storage unit of all computers is comprised to two types of storage - primary and
secondary storage. The primary storage is used to hold pieces of program instructions and
data, intermediate results, and recently produced results of processing of the job(s) that
the computer system is currently working on. On the other hand, the secondary storage is
normally used to hold the program instructions, data, and information of those jobs on
which the computer system is not working on currently but needs to hold them for use at
a later time.
9. As compared to primary storage, the secondary storage is slower in operation, larger
in capacity, cheaper in price, and can retain information even when the computer system
is switched off or reset.
10. During data processing, the actual execution of the instructions takes place in the
Arithmetic Logic Unit (ALU) of a computer system.
11. The control unit of a computer system manages and coordinates the operations of all
the other components of the computer system.
12. The control unit and the arithmetic logic unit of a computer system are jointly known
as the Central Processing Unit (CPU), which serves as the brain of the computer system
and is responsible for controlling the operations of all other units of the system.
13. A computer is often referred to as a computer system because it is made up of
integrated components (input, output, storage, and CPU) that work together to perform
the steps called for in t...
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This document was uploaded on 04/07/2014.
- Spring '14