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Information and Communication Technology Applications Jovita Kaur, Lovely Professional University

Notes Unit 2: Generation of Computers

CONTENTS
Objectives

Introduction

2.1 History of Computers
2.1.1 Earlier Computing Devices (3000 BC–1617 AD)

2.1.2 Zeroth Generation Computers (1642–1946)
2.1.3 First Generation Computers (1946–1954)

2.1.4 Second Generation Computers (1953–1964)

2.1.5 Third Generation Computers (1964–1980)
2.1.6 Fourth Generation Computers (1978–Till Date)

2.1.7 Fifth Generation Computers
2.2 Summary

2.3 Keywords
2.4 Review Questions

2.5 Further Readings

Objectives

After studying this unit, you will be able to:
• Know about the history of computers
• Describe the earlier computing devices
• Discuss about the fifth generation computers

Introduction

A generation refers to the state of inprovement in the development of a product. This term is also
used in the different advancements of computer technology. With each new generation, the circuitry
has gotten smaller and more advanced than the previous generation before it. As a result of the
miniaturization, speed, power, and memory of computers has proportionally increased. New
discoveries are constantly being developed that affect the way we live, work and play.

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