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In the 1642s, the French mathematicians Blaise Pascal made an Arithmetic Machine .
In the 1670s, a German called Leibnitz contiued Pascal's work and made a better machine. -
In the 1820s, a British mathematician called Charles Babbage invented a machine that did very difficult calculations automatically.
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Ava Lovelace work with Babbage for create the Babbage's Difference Engine
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Alan Turing was bonr in 1912 in London. He studied mathematics at Cambridge University.
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Alan Turing and the other people ast Bletchley built the bombe machine, the bombe machine try to break the Enigma code.
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The first computers were built in the 1940s and 1950s, they were as a big as a room.
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In 1943, the Germans started using a different code.The British called this the Enigma code fish.The bombe ,chine could not not break this code,so the workers at Bletchley Park needed a new computer.
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Bill Gates was born in Seattle, USA, in 1955.He began to study computer programming at school, when he was thirteen.Hw went to Harvard University, while he was a student there.Bill Gates and Paul Allen wrote a computer program for the new personal computer, the Altair 8800.
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In 1957,IBM made a computer called the 610 Auto-Point.They said it was the "First personal computer".
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The internet began in the 1970s as a way to send information from one computer to another. It was only used by people who worked in governments and universities.
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In 1975 Bill Gates and Paul Allen started their own company - Microsoft. Microsoft made their own operating system whoch used pictures- they called it Windows. Windows became the most succesuful piece os software in the history of computing.
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Steve Wozniak and Steve Jobs started the Apple Computer Company.
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In 1996 two students at Standford University, invented a new netter kind of search engine. they called Google.
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In 1997 an American University student called Shawn Fanning invented a piece of software that could copy music. In may of the same year, he started a company called Napster. Internet users could visit napster and use its software to copy their favourite music.
