History of Computers

Difference Engine

Jan 1, 1822

An engine that computed a series of numbers and printed them.

Anylitical Engine

Jan 1, 1837

Contained arithnetic logic unit (ALU), flow control, and intigrated memory. First general purpose computing unit.

Z1

Jan 1, 1936

First programable computer.

Colossus

Dec 1, 1943

First electronic programmable computer. Created by Tommy Flowers.

EDSAC

May 6, 1949

First stored program electronic computer. Played first computer game.

701

Apr 7, 1953

First IBM compatible computer. FIrst massed produced computer.

Whirlwind Machine

Mar 8, 1955

MIT introduced the first computer that uses a magnetic RAM, and real-time graphics.

HP 9100A

Jan 1, 1968

Hewlitt Packerd introduced the first mass marketed PC.

Intel 4004

Nov 15, 1971

Intel created the first microprocessor.

Osborne

Apr 1, 1981

First "laptop," created by Adam Osborne.