COMPUTERS:

It’s JourneyThrough the

Years

How does the computer came

up?

CALCULATE: derived from the Latin “calculate”, taken from

the latin “calculus”, which means a small stone or

pebble.

THE DISTANT

PAST

ABACUS: came from the latin word

“abax or abakon”, meaning table or tablet.Historian refers this as

“counting board”

MODERN ABACUS

THE 1600’s

1642BLAISE PASCAL:

-designs the first functioning mechanical calculator, which can perform the work of six accountants.

MECHANICAL CALCULATOR

1694GOTTFRIED

LEIBNIZ:-builds a

calculating machine, that uses binary representations of numbers.

CALCULATING MACHINE

THE 1800’s

1832CHARLES BABBAGE:

-designs the first computer.

DIFFERENCE ENGINE

1854GEORGE BOOLE:

-publishes his thoughts on symbolic logic; which decades later will form the basis of computer science applications.

SYMBOLIC LOGIC OF BOOLE

1890HERMAN HOLLERITH:

-designs the punch-card tabulation machine.

PUNCH-CARD TABULATION MACHINE

1896HERMAN HOLLERITH:

-founds the Tabulating Machine Company, one of the three companies that will later merge and become known as IBM.

1897KARL BRAUN:

-develops the Cathode-ray tube.

CATHODE-RAY TUBE

THE 1900’s

1937JOHN ATANASOFF:

-work on the first electronic digital computer.

-the ENIAC

ATANASOFF - BERRY COMPUTER

ENIAC

1937GEORGES STIBITZ:

-develops the first binary circuit at Bell Labs.

BINARY CIRCUIT

1938WILLIAM HEWLETT

and DAVID PACKARD:

-form HP in a garage in Palo Alto, California.

WILLIAM HEWLETT

WILLIAM HEWLETT

Garage (FRONT) HP Outside

HP at Garage HP

1938KONRAD ZUSE:

-produces the First Computer that uses binary code.

Zuse First Computer that uses Binary Code

1951MAUCHLY and

JOHN ECKERT:-build the UNIVAC

1, the first commercial electronic computer, which is installed at the U.S. Census Bureau.

JOHN MAUCHLY

J. PRESPER ECKERT

Mauchly leaning over UNIVAC

consoleUNIVAC 1

1953IBM:

-manufactures its Model 650, the first mass-produced computer.

MODEL 650

1970FLOPPY

DESK:-is

introduced.

1970INTEL:

-develops the first memory chip,which stores 1024 bits of data.

1975ALTAIR

8800:-the first

widely marketed personal computer, debuts.

1975BOB METCALFE:

-develops ETHERNET.

ETHERNET

1977BILL GATES and

PAUL ALLEN:-officially found

MICROSOFT.

BILL GATES PAUL ALLEN

1977APPLE:

-introduces APPLE II, the first preassembled personal computer.

1978WORDSTAR:

-is released and quickly becomes the most popular word processing program.

WORDSTAR

1981IBM:

-introduces the IBM PC, with an MS-DOS Operating System.

1984CD-ROM debuts

LaserJet the first laser printer was marketed by Hewlett-Packard.

CD-ROM LaserJet Printer

1984WILLIAM

GIBSON:-coins the term

“CYBERSPACE”.

1985MICROSOFT:

-develops Windows 1.0 for the IBM PC.

1989TIM BERNERS-LEE:

-invents the World Wide Web.

1997DVD PLAYERS:

-become available in the United States.