The passing of Sir Clive Sinclair has meant there are a lot articles about his life and work being written, this is one of my favourites.
Uncle Clive’s Greatest Hit: The ZX Spectrum – Raspberry Pi
I didn’t have a Spectrum I had a very much hacked about, home assembled ZX81 which at the time was at the heart of my amateur radio station.
Clive Catton MSc (Cyber Security) – by-line and other articles
Further Reading
Image from a Google search for ZX81 adverts no credit available but acknowledged.