Computer History

Generations of Computers

The first generation

The first generations of Computers was created by a man called Charles Babbage in 1822. In 1613 the word "Computer" was first used. This word was to describe a human who does calculations.

2nd Generation

Switches replaced vacuum tubes in the second generation of computers. The switches were invented in 1947 but did not see the use in computers until the late 1950s. The switch was much better than the vacuum tube, making computers become smaller. It also made them lighter, faster and quicker to use. Although the switch still gave off a lot of heat. That heat damaged the computer but it was a still a lot better than the vacuum tube.

3rd Generation

The making of the intergrated circuit was the best part of the third generation of computers. Switches were made smaller and placed on , silicon chips that were called semi conductors. The semi conductors made a huge difference on speed on computers.

4th Generation

A very clever man brought the fourth generation of computers to life. He did that by putting thousands of integrated circuits on a silicon chip, and that in the first generation filled an entire room, now fitted in the palm of the hand.

Alan Turing

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Alan Mathison Turing was an computer scientist. He was lived from 23rd June 1912 – 7th June 1954. He was a British pioneer, that made history. He made one of the first Computers called the Turing machine. He also made the Turing test which was to test the computers ability to answer the same as a human. In his life he had an OBE which is a great award. Unfortunately Alan did suicide at the age of 41. He put poison in an apple and then took a bite (apple logo). But thanks to Mr Alan Turing we can now use computers in our everyday lives.

Tim berners Lee

Sir Timothy John Lee was born 8 June 1955 and grew up in London. He is an English computer scientist and best known as the maker of the World Wide Web. He studied physics at Oxford University and became a software engineer. English computer scientist and best known as the maker of the World Wide Web. He did a hypertext with the Internet, to create a system for sharing and offering information not just within a company, but world wide.
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Peripheral Divices

  • keyboard
  • mouse
  • touchscreen
  • pen tablet
  • joystick
  • scanner
  • digital camera
  • video camera
  • microphone
  • touchscreen
  • pen tablet
  • scanner
  • microphone
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