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Napier’s Bones (1617)
Invented by John Napier. Napier’s Bones were a set of rods used to simplify multiplication and division. -
Pascaline (1642)
Pascaline was the first mechanical calculator designed by Blaise Pascal, It was an early attempt at automating mathematical calculations. -
Stepped Reckoner (1673)
Stepped Reckoner was Developed by Gottfried Wilhelm Leibniz, this mechanical calculator could perform addition, subtraction, multiplication, and division. -
Charles Babbage’s Difference Engine (1822)
Charles Babbage’s Difference Engine designed by Charles Babbage. This engine automate the calculation of mathematical tables. -
Analytical Engine (1837)
Analytical Engine, was a much more ambitious project and is regarded as the first conceptual general-purpose computer. -
Hollerith’s Tabulating Machine (1890)
Hollerith’s Tabulating Machine was invented by Herman Hollerith. His Tabulating Machine could quickly and accurately sort and count data, speeding up the census process. -
Zuse Z3 (1941)
Zuse Z3 invented by Konrad Zuse. Zuse Z3 the world’s first programmable electromechanical computer. It used binary code and could perform floating-point arithmetic. -
ENIAC (1945)
The ENIAC was the first general-purpose electronic computer. Built by John Presper Eckert and John Mauchly at the University of Pennsylvania, ENIAC was used by the U.S. military to calculate artillery trajectories during World War II. -
UNIVAC I (1951)
The UNIVAC I was the first commercially produced computer. It was used primarily for business applications, including processing the U.S. Census and predicting the outcome of the 1952 U.S. -
Altair 8800 (1975)
The Altair 8800 is often considered the first personal computer. Developed by MITS, it was sold as a build-it-yourself kit. -
IBM PC (1981)
IBM introduced the IBM PC, which set the standard for personal computers in the 1980s. -
Apple II (1977)
The Apple II, designed by Steve Wozniak and marketed by Steve Jobs, was one of the first highly successful personal computers.