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Technology Computing and information technology Specific hardware Early computers

Early computers

Analytical engine

Proposed mechanical general-purpose computer

Antikythera mechanism

Ancient Greek analogue astronomical computer

First computer model in the Apple II series

Atanasoff–Berry computer

Early electronic digital computing device

Atlas (computer)

Supercomputer of the 1960s

Colossus computer

Early British cryptanalysis computer

Difference engine

Automatic mechanical calculator designed to tabulate polynomial functions

1940s-1950s British computer

One of the earliest electronic computers, delivered in 1949

First electronic general-purpose digital computer

Early American electromechanical computer (1944)

IBM 7030 Stretch

First IBM supercomputer using dedicated transistors

IBM Personal Computer

Personal computer model released in 1981

Series of supercomputers built between 1951 and 1974

Manchester Baby

First electronic stored-program computer, 1948

Manchester computers

Series of stored-program electronic computers

Manchester Mark 1

British stored-program computer, 1949

SEAC (computer)

First-generation electronic computer built in 1950

SWAC (computer)

Early computer model

Microcomputer launched in 1977, sold by Tandy Corporation through Radio Shack stores

General-purpose computer design for business application first produced in the United States in 1951

Livermore Advanced Research Computer

Vacuum tube computer developed by the MIT

First working programmable, fully automatic digital computer