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computer science

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Happy birthday, George Boole!

Modern computers wouldn't be possible without George Boole, who died before light bulbs even came on the market. We celebrate his 200th birthday with a look at the man and his work.
Article

Quantum in context

An untapped resource could provide the magic needed for quantum computation — and perhaps even open the door to time travel.

News story

Staying anonymous

A team of computer scientists has found a weakness in the world's most popular anonymity service.
Article

Information is noisy

When you transmit information long-distance there is always a chance that some of it gets mangled and arrives at the other end corrupted. Luckily, there are clever ways of encoding information which ensure a tiny error rate, even when your communication channel is prone to errors.
Article

Information is bits

Computers represent information using bits — that's 0s and 1s. It turns out that Claude Shannon's entropy, a measure of information invented long before computers became mainstream, measures the minimal number of bits you need to encode a piece of information.