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Complex Number Calculator (CNC)
Created by George Stibitz, the CNC is considered a forerunner of the digital computer. It also became possible to construct expressions that will add, subtract, multiply, or divide any kind of number at all. -
Atanasoff-Berry Computer (ABC)
Created by John Vincent Atanasoff and Clifford Berry, the ABC was the first automatic electronic digital computer. It was designed for the solution of systems of simultaneous linear equations. -
Colossus
Created by Tommy Flowers, the Colossus was the first fully programmable digital computer. It decrypted messages from the Germans and shortened the war by many months, saving tens of thousands of lives. -
Electronic Numerical Integrator and Computer (ENIAC)
Designed by John Mauchly and J. Presper Eckert, ENIAC laid the foundations for the modern electronic computing industry. It introduced the concept of programmability. -
Manchester Baby/ Small-Scale Experimental Machine (SSEM)
Built by Frederic C. Williams, Tom Kilburn, and Geoff Tootill, SSEM acted as a proof of concept for the first true random access memory