The Antikythera mechanism is an ancient mechanical computer designed to calculate astronomical positions. It was recovered in 1900–1901 from the Antikythera wreck. Its significance and complexity were not understood until decades later. Its...

Napier's bones are an abacus invented by John Napier for calculation of products and quotients of numbers. Also called Rabdologia. Napier published his invention of the rods in a work printed in Edinburgh at the end of 1617 also entitle...

Charles Babbage was an English mathematician, analytical philosopher, mechanical engineer and (proto-) computer scientist who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London S...

Augusta Ada King, Countess of Lovelace, born Augusta Ada Byron and now commonly known as Ada Lovelace, was an English mathematician and writer chiefly known for her work on Charles Babbage's early mechanical general-purpose computer, the An...

George Boole was an English mathematician, educator, philosopher and logician. He worked in the fields of differential equations and algebraic logic, and is best known as the author of The Laws of Thought (1854) which contains Boolean algeb...

Cyrus West Field was an American businessman and financier who led the Atlantic Telegraph Company, the company that successfully laid the first telegraph cable across the Atlantic Ocean in 1858. The cable broke down three weeks afterwar...

Paul Marie Ghislain Otlet was a Belgian author, entrepreneur, visionary, lawyer and peace activist; he is one of several people who have been considered the father of information science, a field he called "documentation". Otlet created the...

John von Neumann was a Hungarian American mathematician who made major contributions to a vast range of fields, including set theory, functional analysis, quantum mechanics, ergodic theory, continuous geometry, economics and game theory, co...

Thomas "Tommy" Harold Flowers was an English engineer. During World War II, Flowers designed Colossus, the world's first programmable electronic computer, to help solve encrypted German messages. Flowers's first contact with the wartime...

Mikhail Moiseyevich Botvinnik was a Soviet and Russian International Grandmaster and World Chess Champion for most of 1948 to 1963. Working as an electrical engineer and computer scientist at the same time, he was one of the very few profes...

Alan Mathison Turing OBE FRS was an English mathematician, computer scientist, logician, cryptanalyst, philosopher, and theoretical biologist. Turing was highly influential in the development of theoretical computer science, providing a for...

Gordon Earle Moore is the co-founder and Chairman Emeritus of Intel Corporation and the author of Moore's Law (published in an article 19 April 1965 in Electronics Magazine). Moore's law describes a long-term trend in the history of computi...

Edsger Wybe Dijkstra was a Dutch computer scientist. He received the 1972 Turing Award for fundamental contributions to developing programming languages, and was the Schlumberger Centennial Chair of Computer Sciences at The University of Te...

Steve Wozniak, known as Woz, is an American inventor, computer engineer and programmer who co-founded Apple Computer (now Apple Inc.) with Steve Jobs and Ronald Wayne. Wozniak single-handedly invented both the Apple I and Apple II computers...

Sir Timothy John "Tim" Berners-Lee, also known as "TimBL", is an English computer scientist, best known as the inventor of the World Wide Web. He made a proposal for an information management system in March 1989, and he implemented the fir...