Historyof

Computer

What is a Computer?A device that processes input and generates output.

Early Computers:Abacus

Difference/Analytical Engine

Jacquard Loom

UNIVAC

1940s

The Complex Number

Calculator

Considered to be the first

demonstration of remote access

computing.

Zeus Z3

First programmable computing machine.

ENIAC

The first general-purpose computer.

1950s

SEAC

The first computer to use all-diode logic.

IBM 650

The world’s first mass-produced computer

Pilot ACE

Perform floating point arithmetic necessary for scientific

calculations.

1960s

PDP-1

Famous for being the computer most important in the creation

of hacker culture.IBM System 360

The first family of computers designed to cover the complete range of applications, from small

to large, both commercial and scientific.

Data General Nova

A computer that can do simple computing tasks that was

widely used in science laboratories.

1970sIBM System 370

The first to use Virtual Memory and utilized memory chips instead of

magnetic core technology.

ASCII

A character-encoding scheme originally based on the English alphabet that encodes 128 specified characters.

Altair 8800

Ignited the microcomputer revolution.

1980sVIC 20

An 8-bit home computer that has video games capability.

TRS-80 Color Computer

one of the earliest of the first generation of home

computers marketed for home use in English-speaking

markets.

Macintosh SE

Apple manufactures personal computers.

1990sMacintosh IIfx

A specialized high-speed (80 ns) RAM using 64-pin dual-

ported SIMMs.

Amiga 3000

Features improved processing speed,

improved rendering of graphics, and a new

revision of the operating system.

PowerMac

The first personal supercomputers, reaching speeds

of 4 to 20 Gigaflops.

2000sAlienware

A high-speed computer built for gaming. Boasts intense graphics for ultimate gaming

experience.

MacBook Air

A laptop designed for optimum performance and portability.

iMac

The slimmest version of known desktop to date that gives full speed performance

and vivid graphics.

ComputerA fast changing invention that can either change the life of people for the good

or for the bad.

Use it wisely and responsibly.