Evolution of the Computer

Land marks of the Computer History

Evolution of the Computer

Very simple society.

Simple Calculations and transactions

Evolution of the Computer

Invention of Abacus to do calculations

more

vedio

Evolution of the Computer

Blaise Pascal’s Adding Machine

Gottfried Wilhelm

Von Leibniz

Made improvements to the Pascal’s machine. It was possible to divide

and multiply also

The loom manufactured during the period of industrialization

Evolution of the Computer

Charles Babbage’s Analytical Engine

Punched Card

Evolution of the Computer

Hermon Hollerith’s Machine

MARK I

MARK II

Evolution of the Computer

ENIAC Computer (The First Electronic Digital Computer)

UNIVAC

IBM 650

IBM 702

Evolution of the Computer

- Used Vacuum Tubes

- Lot of heat

- more space to place

- Less Speed

- One job at a time

- Job scheduled Manually

The First transistor

Evolution of the Computer

- Used Transistors

- Job scheduled Automatically

The First IC

Evolution of the Computer

- Used Integrated Circuits (IC)

- Time sharing (more than one jobs at a time)

Evolution of the Computer

- Used Microchips

-Distributed system

More

Evolution of the Computer

- Artificial Intelligence (Robot Technology)

-Natural voice to input data

GENERATIONS OF COMPUTERS

 FIRST (early

50's)SECOND (late

50's)THIRD (60's)

FOURTH (70's +)

Technology vacuum tubes TransistorsIntegrated

circuitsmicrochips

(LSI, VLSI)

Relative speed 1 100 100 1,000,000 +++

Relative cost 1 0.1 0.01 0.001 ---

RAM capacity (bytes)

1,000-8,000 4,000-64,00032,000-

4,000,00032,000,000+++

External storage

cards Tape magnetic disks mass storage

Operating System

Single user; jobs scheduled manually

Single user; jobs scheduled automatically

Multiple users; time- sharing

Multiple users; distributed  systems