Generation of Computer 1st to 5th with Notes

Spread the love

Welcome to Moral Storys5 Generation of Computer. I have explained it well and in detail in this blog post. Definitely useful for you. Nowadays computers are used everywhere. Because we must have knowledge about computers. Computer knowledge is essential for us if we want to advance in the competitive world.

The first electronic computer was the Eniac. Computers invented after Eniac are divided into five generations. These mainly work with electronic circuits; hence, they are called “electronic generation computers.” Computers invented after 1946 are divided into five generations. 

Generations of computers are broadly classified into two types

  1. Non-electronic generation (zero generation).
  2. Electronic generation.

First Generation of Computers (1946s – 1959s)

Computers implemented during this period of 1946–1959 are called “first generation computers.” A vacuum tube was used in this generation. The first generation of computers had limited internal capacity and storage capacity.

  • ‌Vacuum tube technology was introduced in the first-generation computer.
  • ‌ Unreliable.
  • ‌The speed of this generation of computers was slow.
  • ‌It is very costly.
  • ‌Generation a lot of heat.
  • ‌This generation of computers has had problems again and again.
  • ‌Supported machine language only.
  • ‌Slow input and output devices.
  • ‌Non-profit.
  • ‌Consumed a lot of electricity.
  • ‌Some computers of this generation use ENIAC and EDVAC.

Second Generation of Computers (1959s – 1965s)

Computers invented between 1959 and 1965 are called second-generation computers. These computers were small in size and very cheap.

  • ‌Use of transistor technology.
  • ‌Reliable in comparison to first-generation.
  • ‌Smaller size in comparison to first-generation computers.
  • ‌Generated less heat in comparison to a first-generation computer.
  • ‌Consumed less electricity.
  • ‌Faster than a comparison to a first-generation.
  • ‌AC is needed
  • ‌Supported machine and assembly-level languages.
  • ‌Some computers of this generation are IBM 1620 and UNIVAC.

Third Generation of Computers (1965s – 1971s)

Computers invented between 1965 and 1971 are called “Third Generation” computers. These computers were small in size, low in price, and had better speed.

  • Integrated circuits were used in third-generation computers.
  • More reliable in comparison to previous generations.
  • Smaller size.
  • Generated less heat.
  • Faster in comparison to previous-generation computers.
  • Cheap price.
  • AC is needed.
  • Consumed less electricity.
  • Supported high-level language.
  • Some computers of this generation were IBM 360s and PDPs (Personal Data Process).

Also Read : Computer Full Form: A to Z Computer Full Form List

Fourth Generation of Computers (1971s – 1980s)

Computers invented between 1971 and 1980 are called fourth-generation computers. These used large-scale integrated circuits. 

  • The period of the fourth generation, 1971–1988,
  • very cheap price.
  • VLSI technology is used (very large-scale integrated).
  • portable and reliable, too.
  • No AC is needed.
  • The concept of the internet was introduced.
  • great development in the field of networking.
  • Computers became easily available.
  • Pipeline processing.
  • Some computers of this generation, such as the PDP-11 and Cray, are supercomputers.

Fifth Generation of Computers (1980s – present)

The period of fifth-generation computers is from 1980 to the present.

  • The period of the fifth generation is from 1980 onward.
  • ULSI technology is used (ultra large scale integrated).
  • Development of artificial intelligence.
  • Development of natural language processing.
  • Advancement in parallel processing.
  • Advancement in semiconductor technology.
  • More user-friendly interfaces with multimedia features

For example, personal computers.

What are the 5 types of generation of computer?

Generation of ComputersPeriod/YearTechnology
1st generation1956s – 1959sVacuum tube
2nd generation1959s – 1965sTransistors
3rd generation1965s – 1971sIntegrated circuits
4th generation1971s – 1980sVSLI
5th generation1980s – presentULSI/AI


Man has made many new inventions to make his work easier. He made new inventions and introduced new technology to the world. Man has succeeded in making inventions that amazed the world. Both hardware and software are considered in computer generation.

Technologies that have changed since the beginning of the computer generation can be identified.There have been significant improvements in the size, speed, and performance of computers.

Also Read: Mahatma Gandhi Essay with introduction and conclusion.

Frequently Asked Questions

Q1. How many generation of computer?

Ans: There are five generation of computers:
First generation of computer (1946s – 1959s)
‌Second generation of computer (1959s – 1965s)
Third generation of computer (1965s – 1971s)
‌Fourth generation of computer (1971s – 1980s)
‌Fifth generation of computer (1980s – present)

Q2. What is genaration of computer?

Ans: The term “generation of computers” refers to the many stages or phases in the evolution of computing technology. The hardware, architecture, and general capabilities of computers progress significantly with each generation. These generations can be distinguished from their forebears by distinctive traits and innovations.

Q3. On what basis has the computer generation divided into five types?

Ans: Here they are divided into five generations based on size, price, speed, and work performance. To understand the evolution of computers, it is divided into five generations.

Q4. Integrated circuits are related to which generation of computer?

Ans: Integrated circuits were used in third-generation computers.

Q5. Microprocessor was introduced in which generation of computer?

Ans: Fourth generation of computers.

Q6. First generation of computer was based on which technology?

Ans: Vacuum tube technology was introduced in the first-generation computer.

Q7. Which generation of computer is still under development?

Ans: Fifth generation of computers.

Q8. What is the full form of ENIAC?

Ans: Electronic Numerical Integrator and Calculator. It was the first electronic computer to be developed.

Spread the love