History and Generation of Computers

Computers are not necessarily as small, fast, and powerful as they are now. The history of computers is the process of evolution of computers, which began with massive calculating machines and culminated in the present smart devices. Computers have made several improvements over time in alternations referred to as generations.

We shall see how there was a development of computers over time.

Early History of Computers

Electronic computers were invented, and before then, people used calculators that were not complex.

Abacus

One of the earliest calculating machines was the abacus, which was used thousands of years ago.

Mechanical Calculators

Machines have subsequently been developed to do mathematical calculations.

Charles Babbage – Father of Computers

The Analytical Engine, designed by Charles Babbage, is regarded as the prototype of the modern computer. He was referred to as the Father of Computers.

ENIAC

The earliest electronic computer was ENIAC, constructed in the 1940s. It was extremely huge, and it was in a room of its own.

Generations of Computers

The history of computers is separated into five generations. The size, speed and technology of each generation are better.

1. First Generation (1940-1956)

  • Used vacuum tubes
  • Very large in size
  • Produced a lot of heat
  • Slow and expensive

Models -

  • ENIAC
  • EDVAC
  • UNIVAC I

First gen


2. Second Generation (1956-1963)

  • Vacuum tubes were replaced by transistors.
  • Smaller and faster
  • Consumed less electricity
  • More reliable

Models -

  • IBM 1401
  • IBM 7094
  • CDC 1604

Second gen


3. Third Generation (1964-1971)

  • Reused integrated circuits (ICs)
  • Much smaller and faster
  • Reduced size and cost
  • Improved performance

Models -

  • IBM System/360
  • PDP-8
  • ICL 1900

Third gen


4. Fourth Generation (1971-Present)

  • Used microprocessors
  • Very small in size
  • High speed and large storage
  • The personal computers (PCs) were invented.

Models -

  • IBM PC
  • Apple II
  • Compaq Portable

The majority of computers that are used today fall into this generation.

Fourth gen


5. Fifth Generation (Present and Future)

  • Based on Artificial Intelligence (AI).
  • Can learn and make decisions
  • Applications in robotics, voice recognition and smart systems.
  • This is the generation that is concerned with smarter computers.

Models -

  • IBM Watson
  • Fifth-Generation Computer Systems
  • Deep Blue

Fifth gen

QUIZ FOR HISTORY AND GENERATION OF COMPUTERS

1. What was the first calculating device that assisted individuals in doing calculations thousands of years prior?

A) ENIAC
B) Abacus
C) IBM 1401
D) Apple II

Answer: B) Abacus

2. Who is the Father of Computers who invented the prototype of modern computers?

A) Charles Babbage
B) Bill Gates
C) Steve Jobs
D) Alan Turing

Answer: A) Charles Babbage

3. What was the vacuum tube machine of the 1940s?

A) IBM PC
B) ENIAC
C) IBM 7094
D) Compaq Portable

Answer: B) ENIAC

4. What was the generation of computers that brought about the use of transistors, which are smaller and faster?

A) First Generation
B) Second Generation
C) Third Generation
D) Fifth Generation

Answer: B) Second Generation

5. What generation did computers begin adopting the use of microprocessors, which made them even smaller and more powerful?

A) Third Generation
B) Fourth Generation
C) Fifth Generation
D) First Generation

Answer: B) Fourth Generation

6. What is the distinguishing characteristic of the fifth-generation computers?

A) They are small and slow.
B) They are using artificial intelligence (AI).
C) They use vacuum tubes.
D) They run on transistors.

Answer: B) They are using artificial intelligence (AI).

7. What was the first generation of models using vacuum tubes and consuming a lot of space?

A) IBM Watson
B) PDP-8
C) ENIAC
D) Apple II

Answer: C) ENIAC

8. Which one of these is a current-day example of a third-generation computer using integrated circuits?

A) IBM PC
B) IBM 1401
C) PDP-8
D) Compaq Portable

Answer: C) PDP-8

9. When computers use AI for task completion. Which generation is that?

A) Second Generation
B) Third Generation
C) Fifth Generation
D) First Generation

Answer: C) Fifth Generation

10. What second generation of computers replaced its vacuum tubes?

A) Transistors
B) Microprocessors
C) Integrated Circuits
D) Artificial Intelligence

Answer: A) Transistors