3 ms·

I had this one piece "keyboard upgrade": https://www.computinghistory.org.uk/det/36030/Sinclair-ZX81-with-keyboard-upgrade/ https://www.computinghistory.org.uk

by tpmx 3y ago

I had this one piece "keyboard upgrade": https://www.computinghistory.org.uk/det/36030/Sinclair-ZX81-with-keyboard-upgrade/ https://www.computinghistory.org.uk/det/36030/Sinclair-ZX81-... It's debatable if it improved things or not. Must have been really cheap to manufacture though.