Computer History

The first generation

the first generation of computer was created in 1822 by Charles Babbage.

In -, Charles Babbage conceptualized and began developing the difference engine, considered to be the first automatic computing machine. The Difference Engine was capable of computing several sets of numbers and making hard copies of the results.

In 1837 he proposed the first general mechanical computer, the Analytical Engine.

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the second generation of computers

transistors replaced vacuum tubes and were the second generation of computers. The transistor was invented in 1947. The transistor was much better and more advanced than the vacuum tube, allowing computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation. Though the transistor still generated a great deal of heat that subjected the computer to damage, it was a vast improvement over the vacuum tube. Second-generation computers still relied on punched cards for input and printouts for output.

These were also the first computers that stored their instructions in their memory, which moved from a magnetic drum to magnetic core technology.

The first computers of this generation were developed for the atomic energy industry.

third generation of computer

The development of the integrated circuit was the hallmark of the third generation of computers. Transistors were miniaturized and placed on sillcon chips, called semiconducters, which drastically increased the speed and efficiency of computers.

Instead of punched cards and printouts, users interacted with third generation computers through keyboards and monitors and interfaced with an operating system, which allowed the device to run many different applicators at one time with a central program that monitored the memory. Computers for the first time became accessible to a mass audience because they were smaller and cheaper than their predecessors.

the fourth generation of computors

he microprocesser was the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip. were as the first generation filled an entire room could now fit in the palm of the hand. The Intel 4004 chip, developed in 1971, located all the components of the computer—from the central processing unit and memory to input/output controls—on a single chip.

Alan Mathison Turing

Alan Turing was born in Maida Vale, London on the 23rd of June 1912. He went to Princeton university (1936-1938). He became a British pioneering computer scientist, mathematician, logician, cryptanalyst and theoretical biologist. During the second world war, he worked at Bletchley park, Britain's code breaking centre. He worked for the goverment code and cypher school (GC&CS). He invented one of the first computers (the Turing engine). he used his new invention to crack the enigma machine codes that the Germans were sending to each other in their U boats. without his invention we wouldn't have won world war two as quickly as we did. unfortunately he died on the 7th of June 1954 of cyanide poisoning. Because he was gay.
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Tim Bernera-lee

Professor Sir Timothy John Berners-Lee, was born on June the 8th, 1955 in london.

Professor Sir Timothy John Berners-Lee, OM, KBE, FRS, FREng, FRSA, DFBCS, also known as TimBL, is an English computer scientist, best known as the inventor of the World Wide Web.

his parents are Mary Lee Woods and Conway Bernners-lee.

he's the inventor of the world wide web.

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a list of peripheral devices

A peripheral is a "device that is used to put information into or get information out of the computer. such as a computer mouse,
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or keyboard that connects to and works with the computer in some way
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or image scanners
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or tape drives
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or microphones
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and digital cameras.
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Some common input devices
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  • pen tablet
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