TYPES AND GENERATION OFCOMPUTER

CONTENT

Introduction First Generation Second Generation Third Generation Fourth Generation Fifth Generation Speed

The term Computer Generations is mainly used to help understand the various improvement that have taken place in computer used over last few decades

Introduction

FIRST GENERATION OF COMPUTER

FIRST GENERATION First generation of digital computer

were developed in 1940s

Those computers were built using vacuum tube and logic circuitry

They used magnetic drum for main memory

First generation of computer relied on machine language , the lowest-level of programming language understood by computer

They could only solve one problem at a time

VACUUM TUBES

The speed of first generation computer were measured in millisecond

SPEED

SECOND GENERATION OF COMPUTER

SECOND GENERATION Second generation of digital computer

were developed in early 1950s .

They used transistors in place of vacuum tubes .

It was smaller in size , less expensive and generator less heat than vacuum tubes

Even though transistor still generated a lot of heat which could cause damage to the computer it was vast improvement over the vacuum tubes

SPEED

The speed of second generation computer was measured in micro second.

THIRD GENERATION OF COMPUTER

INTEGRATED CIRCUITS

THIRD GENERATION The Third Generation of computer was

developed in the mid 1960s. They used Integrated Circuits in place of

transistors. Integrated circuits where much more Compact. One Integrated circuits could do the Job done

by Hundred transistors. The Computer generated less heat and were

more reliable.

SPEED

The Speed of Third generation of computer was measured in nano-second

MICRO-PROCESSORS WERE DEVELOPED IN FOURTH GENERATION

FOURTH GENERATION The fourth generation computer were

introduced in 1970s. And used last scale integrated (LSI)

Circuits. LSI Chips can fit on a tip of one finger

and yet they contain thousand of transistor , diodes and registers .

This made it possible for inexpensive micro- computer to be developed.

SPEED

The fourth generation speed was measured on pico seconds

FIFTH GENERATION Fifth Generation computers based on

Artificial Intelligence are still under development, however there are several application using voice input that are already in use today.

The Goal of fifth generation computing is to develop devices that respond to natural language input and are capable of learning and self organization.

Artificial Intelligence include A) Playing game such as Chess ,Where

there has been Considerable success, as the super computer called Deep Blue could defeat Gary Kasparov the world chess champion.

B) Use of Natural spoken language to program a computer

Presented by:--Mayuresh Mestry