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English mathematician Charles Babbage conceives of a steam-driven calculating machine that would be able to compute tables of numbers.
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Ada Lovelace, an English mathematician and the daughter of poet Lord Byron, writes the world's first computer program.
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The machine is significant for being the first to "compute tabular differences and print the results.
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Alan Turing, a British scientist and mathematician, presents the principle of a universal machine
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John Vincent Atanasoff, a professor of physics and mathematics at Iowa State University, submits a grant proposal to build the first electric-only computer, without using gears, cams, belts or shafts.
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Atanasoff and his graduate student, Clifford Berry, design the first digital electronic computer in the U.S., called the Atanasoff-Berry Computer (ABC).
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John Mauchly and J. Presper Eckert, design and build the Electronic Numerical Integrator and Calculator (ENIAC). The machine is the first "automatic, general-purpose, electronic, decimal, digital computer
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: Grace Hopper develops the first computer language, which eventually becomes known as COBOL
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Douglas Engelbart reveals a prototype of the modern computer at the Fall Joint Computer Conference, San Francisco.
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Steve Jobs and Steve Wozniak co-found Apple Computer on April Fool's Day. They unveil Apple I, the first computer with a single-circuit board and ROM (Read Only Memory), according to MIT(opens in new tab).
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The Apple Macintosh is announced to the world during a Superbowl advertisement. The Macintosh is launched with a retail price of $2,500, according to the NMAH.
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Mac OS X, later renamed OS X then simply macOS, is released by Apple as the successor to its standard Mac Operating System.
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The MacBook Pro from Apple hits the shelves. The Pro is the company's first Intel-based, dual-core mobile computer.
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The first reprogrammable quantum computer was created. "Until now, there hasn't been any quantum-computing platform that had the capability to program new algorithms into their system.