Computer Imformation

The History of computers and important people

Tim Burners-Lee

Tim Burners-Lee

Tim Burners-Lee was born on the 8th of June 1955. He studied Physics in Oxford University. Tim Burners-Lee was the inventor of the World Wide web, Web Browser, HTML and Hyper Transfer Protocol. He was a computer Scientist. Tim Burners-Lee also works as a senior research scientist.

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The Book

Tim also wrote a book called 'Weaving The Web'. He wrote this book in 1999. It describes how the world wide web was created and his role in it.
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Tim Berners-Lee - World Wide Web @ 25

Alan Turing

Imformation on Alan Turing.

Alan Turing was born on the 23rd of June 1912. Alan Turing was a British pioneering computer scientist, mathematician, logician, cryptanalyst, philosopher, mathematical biologist, and marathon and ultra distance runner. Alan Turing died on the 7th June 1954. Sadly Turing had committed suicide by eating an apple which he had injected with a poison (cyanide).

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The 4 Generations of Computers

The First Generation of Computers.

The first generation of computers were introduced in 1942-1955. The first computers used vacuum tubes for circuitry and magnetic drums for memory. Quite often the can fill a large room.
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The second generation of computers.

The second generation of computers was introduced in 1955-1964. The second generation of computers used transistors. The computers were more reliable, used less energy and were not heated, smaller in size compared to the first generation of computer and faster.
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The third generation of computers.

The third generation of computers were introduced in 1964-1975. The third generation of computers used the integrated circuits (IC). The computers are smaller than the second generation of computers, good storage, less expensive, faster and better accuracy.
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The fourth generation of computers.

The fourth Generation

The fourth generation of computers started with the invention of Microprocessor. The Microprocessor contains thousands of ICs. The fourth generation is smaller than the third generation, fast, cheaper than all the other generations of computers
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Inputs and Outputs

Inputs and Outputs

Input devices allows us to enter data into a computer. Input devices can be manual or automatic. Examples of inputs are keyboard, mouse, camera. Some examples of outputs are printers, speakers, monitors, motors.

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Input and Output Devices

CPU

CPU stands for Central processing unit. CPU is the electronic circuitry within a computer that carries instructions of a computer program by preforming the basic arithmetic, logical , control and inputs/outputs.

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Motherboards

MotherBoards

Motherboards are a printed circuit board containing the principal components of a computer or other devices. Motherboards provide the electrical connections by the other components. Motherboards arose in the early 1980s when IBM combined several core functions onto a single circuit board.
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Raspberry Pi

What is Rasberry Pi

Raspberry Pi is a credit card-sized single-board computer developed in the UK by the Raspberry Pi foundation with the intention of the promising the teaching of the basic computer science in school.

The Cost

  • So, with everything you need to get a Raspberry Pi up and running, it'll cost you £56.22 without an HDMI-capable monitor.