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The History of the Computer

the five generations of the computer
by

adrian aquilina

on 8 March 2011

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Transcript of The History of the Computer

History of Computers First Generation 1940 - 1956 - These computers have vacuum tubes for circuitry. - eg Colossus built in 1943 to help the English government break German codes. Second Generation 1956 - 1963 - Transistors replaced the vacuum tubes. - Transistors made computers smaller, faster, less expensive and more reliable. Third Generation 1964 - 1971 - The development of the IC (integrated circuit) was the hallmark of the third generation of computers. - Instead of punched cards and printouts, users interacted through peripherals such as keyboards, monitors and interfaced with an operating system, which allowed the device to run many different applications at one time. Computers for the first time became accessible to a larger audience because they were smaller and lower cost than their predecessors. Punch Card Colossus vacuum tubes Fourth Generation 1971 - Present - The microprocessor is the king of the fourth generation computers, as thousands pf intergrated circuits were built onto a single silicon chip. - It was this new microprocessor that led the way for modern-day computer technology. - In 1981 IBM introduced its first personal computer for the home user, and in 1984 Apple introduced the Macintosh. Fifth Generation Present and Beyond - Fifth generation computing devices, based on AI (artificial Intelligence), are still in development, though there are some applications, such as voice recognistion, that are being used today. Macintosh Asimo
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