Page 37 - DLIS108_INFORMATION_AND_COMMUNICATION_TECHNOLOGY_APPLICATIONS

Information and Communication Technology Applications Seema Sharma, Lovely Professional University

Notes Unit 5: Computer Hardware

CONTENTS
Objectives

Introduction

5.1 Input and Output Devices
5.1.1 Basic Input Devices

5.1.2 Special Input Devices
5.1.3 Basic Output Devices

5.1.4 Special Output Devices

5.2 Emerging Input/Output Devices
5.3 Role of Input and Output Devices

5.4 Summary
5.5 Keywords

5.6 Review Questions
5.7 Further Readings

Objectives

After studying this unit, you will be able to:
• Discuss about the input and output devices

• Know emerging input and output devices
• Understand the role of input and output devices

Introduction

All the elements that go together to make up a PC fall into one of two categories, hardware or
software. Hardware is the stuff upon which software runs. Everything you can see and touch in
your PC is hardware.
One of the definitions of ‘hardware’ according to Webster’s dictionary is ‘major items of equipment
or their components used for a particular purpose’.
Computer hardware or hardware means the fixed parts that make up a computer.

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