Computers genaration

 

Generation of Computers

Computers are classified into five generations based on the technology used in their development.

1. First Generation of Computers (1940–1956)

Technology: Vacuum Tubes

Features:

Very large in size

Consumed a lot of electricity

Produced excessive heat

Slow processing speed

Programming in machine language only

Examples:

ENIAC

UNIVAC-I

2. Second Generation of Computers (1956–1963)

Technology: Transistors

Features:

Smaller than first generation

Less heat production

More reliable

Used assembly language

Examples:

IBM 1401

IBM 7094

3. Third Generation of Computers (1964–1971)

Technology: Integrated Circuits (IC)

Features:

Smaller and faster

Low power consumption

More storage capacity

Used high-level languages (FORTRAN, COBOL)

Examples:

IBM 360

PDP-8

4. Fourth Generation of Computers (1971–Present)

Technology: Microprocessors

Features:

Very small in size (personal computers)

Very high speed

Low cost

Used operating systems

Examples:

IBM PC

Apple Macintosh

5. Fifth Generation of Computers (Present & Future)

Technology: Artificial Intelligence (AI)

Features:

Use of AI and machine learning

Very high speed

Natural language processing

Robotics and automation

Examples:

AI-based systems

Supercomputers

Summary Table

Generation

Technology Used

Time Period

First

Vacuum Tubes

1940–1956

Second

Transistors

1956–1963

Third

IC

1964–1971

Fourth

Microprocessor

1971–Present

Fifth

AI

Present–Future