Computer System

Chapter Two

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2.1.1 Overview of Computer System

At the end of this topic, studentsshould be able to:

a) Describe the operations involved in information processing cycle

What is Computer System?

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a complete, working computer, includes operating system, software and hardware to make the computer function (Discovering Computers 2013)

Can be defined as a general-purpose and programmable electronic device that processes binary data and carries out task based on computers instruction. (Computer Science for Matriculation)

Information Processing Cycle

Process

Storage

output

• All computer systems go through the information processing cycle.

• Is a sequence of events in processing information which worktogether and repeat again and again in a cycle.

input

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Input• Any data and instruction entered into memory

of computer

Output• Data

that has been processed into a useful form.

Process• Trans

form an input data flow into an output dataflow.

Storage• Hold

data instructions and information for futureuse.

Information Processing Cycle

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Information processing cycle is the series of input, process, output and storage activities.

Computer process data (input) into information (output)

Computer holds data, information and instructions in storage for future use

Information Processing Cycle

Discovering Computers : Chapter 1• Pages 4