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Alan Turing created a machine that is able to compute anything computable in automation.

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ENIAC (Electronic Numerical Integrator and Calculator), the first programmable digital computer built of 18,000 vacuum tubes in a 800 sqft room built by professors from University of Pennsylvania, John Mauchly and J. Presper Eckert.

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William Shockley, John Bardeen and Walter Brattain from Bell Laboratories discovered an alternative way to make an electric switch with a solid material instead of vacuum tubes, which is the transistor.

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UNIVAC built by same professors from ENIAC in 1951. It is famous due to its successfully predicted calculation of the president election in U.S.

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The first computer language - COBOL which is still used nowadays has been developed by Grace Hopper.

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FORmula TRANslation programming language was developed by programmers from IBM.

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Integrated Circuits was invented by Jack Kilby and Robert Noyce which largely reduce size of computer chips while highly increase the speed.

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Prototype of the usage of a GUI with a mouse has been introduced by Douglas Engelbart

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UNIX operating system written in C with high compatibility across multiple platforms make computer have larger acceptability as it is easier to build a computer with functions.

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First programmable device used in calculator

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Personal computers start to hit consumers market including Scelbi & Mark-8 Altair, IBM 5100, Radio Shack's TRS-80. They highly increase usage of computers among consumers instead of scientists only.

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Apple Computers started and Apple I rolled out as first computer with single-circuit board by Steve Jobs and Steve Wozniak

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Word Processing software was introduced for easy word typing

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First IBM personal computer using Microsoft's MS-DOS operating system which looks more like modern computer

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First personal computer with GUI, drop-down menu, Icons and more features.

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Microsoft responses Apple's GUI with Windows

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HTML developed by CERN researcher Tim Berners-Lee which helps in World Wide Web for communication across world.

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Pentium Microprocessor aids graphics and music on computers.

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A Linux-based mobile phone operating system acquired by Google which started smartphone era

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iPad released by Apple which have mobility from mobile phones while having partial performance of computer. Which tends to replace mobile phones and computers as a successor of them, but not yet success.

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Quantum computer which stores not only 0 and 1 in single bit but also the condition between 0 and 1, which makes each bit stores 3 data (0, 1, Between 0 and 1) which speeds up the computer Millions times more.