ZX Spectrum: the legacy of a computer for the masses | Computing | The Guardian
A 3D-Printed Replica of the Classic Sinclair ZX80 to Celebrate Its 40th Birthday - Hackster.io
ZX Spectrum - Wikipedia
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Z80 Assembly programming for the ZX Spectrum
Avensys Commercial on Twitter: "Today's #ThrowbackThursday includes these 3 beauties. The Sinclair ZX80, ZX81 and the amazing ZX Spectrum. Which one did you own?! #sinclair @sinclaircomputers #zx81 #zx80 #zxspectrum #sirclivesinclair #computer #retro #