Sinclair ZX80 Prototype, Home Computer, 1980

Released in 1980, the ZX80 was the first computer available in the UK for under £100. You could buy it ready-made or even cheaper as a kit.

The ZX80 was immediately popular. There was a waiting list of several months for both kit and built version.

This example has a basic ROM that reads PDZ4732, an unknown type. It may be that the machine's ROM was installed just before launch to test functionality.

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