Computers!

Tim Berners-Lee

He is a computer scientist. He was born June 8th 1955 ( age 55) in London, His parents are, Conway Berners-Lee and Mary Lee Wood. His title is Professor. He is the inventor of the World Wide Web in 1989, the university of Southampton. His education was at The Queens Collage, Oxford ( 1973-1976), Emanuel School ( 1969-1973)!

Spouse: Rosemary Leith (m.2014)

Alan Turing!

Alan Mathison Turing was born June 23rd 1912 and died 7th June 1954. Alan was a code breaker for the Government Code and Cypher School (GC and CS) at Bletchley Park, Britians codebreaker center.
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4 generations of computers.

Computers play a huge part in almost all of our lives, but how did these machines become so powerful and important? And what were some of the earliest models like? The world's first electronic computer (launched in 1944), and finishing with the BBC Micro (launched in 1981) and Fourth Generation Computers, looking at how technology changed throughout these years.
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Next generation of computers.

I think the next generation of computers is going to be amazing. I think it will have no virus'. I can't wait to see the next generation of computers.
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Thats what some people think the next generation of computers will be like.

Now theres some history!

1st generation!


It is the Bendix G-15 General Purpose Digital Computer, a First Generation computer introduced in 1956.

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2nd generation!

At one time they were the cutting edge of technology, but now the only place you're likely to find a second generation computer is in a museum display . The technological leap that ushered in the era of second generation computers in the 1950s and 1960s was the introduction of the transistor. This replaced the bulky and unreliable vacuum valves used by the first generation of electrically-powered computers. The smaller transistors packed much more processing power into a smaller space, starting the process that led to the development of the silicon microchip and the increases in computational power that continues to this day.
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3rd generation!

During the period of 1964 to 1971 Third generation computers were developed. Jack Kilby developed the concept of integrated circuit in 1958. It was an important invention in the computer field. The first IC was invented and used in 1961.

The Fourth Generation.

Ted Hoff produced the first microprocessor in 1971 for Intel. It was known as Intel 4004. The technology of integrated circuits improved rapidly.
generation's of computer (HQ)
A Brief History of Computers

Inputs and outputs!


An input is data that a computer receives. An output is data that a computer sends.



Computers only work with digital information. Any input that a computer receives must be digitised.



Often data has to be converted back to an analogue format when it's output, for example the sound from a computer's speakers. An input device is something you connect to a computer that sends information into the computer. An output device is something you connect to a computer that has information sent to it.

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Hard Drives!

Hard Drive Disk (HDD) is a date storage device used for storing and recieving digital information.
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Hard disks spin at very high speeds (around 7,200 RPM - revolutions per minute) within a sealed unit inside the computer. The data stored on a hard disk is retained until deleted, but it needs to be loaded into main store RAM before it can be used.
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Monitors!

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The monitor window is where you can watch and edit your video. Monitor windows have a play button, which is clicked to play the clip. They also have buttons or a sliding bar so you can move to different points within the clip.

Most monitor windows will also have buttons that allow you to add in and out points to select a segment from within a larger video clip.

CPU!

Central Processing Unit.

The CPU (Central Processing Unit) is the part of a computer system that is commonly referred to as the "brains" of a computer. The CPU is also known as the processor or microprocessor.
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RAM/ROM!

  1. RAM (pronounced ramm) is an acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printers.

  1. Once data has been written onto a ROM chip, it cannot be removed and can only be read. Unlike main memory (RAM), ROM retains its contents even when the computer is turned off. ROM is referred to as being nonvolatile, whereas RAM is volatile.

Here's a ROM!

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Here's a RAM!

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Motherboards!

  1. A motherboard (sometimes alternatively known as the mainboard, system board, planar board or logic board, or colloquially, a mobo) is the main printed circuit board (PCB) found in computers and other expandable systems. Alternatively referred to as the mb, mainboard, mobo, mobd, backplane board,base board, main circuit board, planar board, system board, or a logic boardon Apple computers. The motherboard is a printed circuit board that is the foundation of a computer, located at the bottom of the computer case. It allocates power to the CPU, RAM, and all other computer hard ware components. Most importantly, the motherboard allows hardware components to communicate with one another.

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Raspberry Pi!

Some people may think Raspberry Pi is a pie but are wrong, Raspberry Pi is a credit card sized computor device.

This is not what I mean!

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Here's a Raspberry Pi video to help you understand.

The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV, and uses a standard keyboard and mouse. It is a capable little device that enables people of all ages to explore computing, and to learn how to program in languages like Scratch and Python. It’s capable of doing everything you’d expect a desktop computer to do, from browsing the internet and playing high-definition video, to making spreadsheets, word-processing, and playing games.

What’s more, the Raspberry Pi has the ability to interact with the outside world, and has been used in a wide array of digital maker projects, from music machines and parent detectors to weather stations and tweeting birdhouses with infra-red cameras. We want to see the Raspberry Pi being used by kids all over the world to learn to program and understand how computers work.
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Here's a small version of Raspberry Pi text.

The Raspberry Pi is a small computer which is a great tool for getting started with programming. the Arduino is a microcontroller ideal for projects such as wearable technolgy.

For more imformation.

3D Printers!