James Newman started work on the "Megaprocessor", which is 33ft (10m) wide and 6ft (2m) high, in 2012. It does the job of a chip-sized microprocessor and Mr Newman has spent £40,000 ($53,000) creating it. It contains 40,000 transistors, 10,000 LED lights and it weighs around half a tonne (500kg). So far, he has used it to play the classic video game Tetris.
"The machine on your desk may be a million times better than what I have built - but mine is much prettier," he told the BBC. "Mine has 10,000 times more LEDs."
http://www.bbc.com/news/technology-36711989
Sister blog of Physicists of the Caribbean in which I babble about non-astronomy stuff, because everyone needs a hobby
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That's great - I came across this as a work in progress a few months back.
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