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24 Terms

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Who was Alan Turing?

He was an English Mathematician and computer scientist as well as a philosopher 

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What was Alan Turing famous for

He made the Turing machine, he saved 14,000,000 people by using his machine to decrypt the Nazis secret messages

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what does the word encryption mean

a method which i used to scramble words or phrases where no one can understand them when they are intercepted

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how do Pigpen an Caesar cipher work and how to decrypt them 

In a pigpen cipher letter is a symbol and you need to match up each letter with the symbol to decrypt the code. For a Caesar cipher key is used to shift each letter of the original message a certain number of places down the alphabet. For example, with a key of 3, 'A' becomes 'D', 'B' becomes 'E', . To decrypt the code you need to each letter of the code backwards until you find the sentence 

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How does frequency analysis work

You find it by counting how many letters there are in the passage based on the piece of text

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who was George Boole

He was a mathematicia from the 1800s  

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what was Boole famous for

He’s known for his Boolean logic

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what 3 different logic gates are there

NOT, AND and OR gate

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what do the 3 logic gates do

A NOT gate gives the opposite number out

A AND gate only gives a 1 if both the numbers are 1 before 

A OR gate gives a 1 if there is a 1 in the numbers 

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Who were Charles Babbage and Ada Lovelace 

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what are Babbage and Lovelace famous for?

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what

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