One of the first Apple computers ever built goes on the Christie’s auction block in New York this week – and it could sell for half a million dollars (€377,000), or more.

The Apple 1 from 1976 is a forerunner of today’s MacBooks, iPads and iPhones.

Ted Perry, a retired school psychologist from California who owns the old Apple, has kept it stashed away in a cardboard box. He says the green piece of plastic covered with memory chips is where the personal computer “revolution” started.

The board was produced by two college dropouts – Steve Jobs and Steve Wozniak. It first sold for $666.66 (now €503.61).

The Apple 1 will be offered online from tomorrow to July 9.

Another Apple 1 was sold last month for a record $671,400 (€506,376) by a German auction house.

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