James Newman, a digital electronics engineer has built an enormous computer in the sitting room of his bungalow in Cambridge.
He started working on the “Mega-processor”, which is 33ft wide and 6ft high, back in 2012. It does the job of a chip-sized microprocessor and Mr Newman has spent $53,000 creating it.
It contains 40,000 transistors, 10000 LED lights and it weighs around 500kg. So far, he has used it to play the classic video game Tetris.
He admitted the game isn’t easy to play during a video demonstration.
BBC News reports, James started the project because he was learning about transistors and wanted to visualize how a microprocessor worked. The components all light up as the huge device carries out a task.
He hopes the Mega-processor will be used as an educational tool and is planning a series of open days at his home over the summer.
“My dream is that it goes to a museum or educational institute so that people can learn from it,” James tells BBC.