ZX Spectrum
This section is about using the ZX Spectrum. Both in emulators on a Ubuntu machine as the Real ZX Spectrum.
For those interested about what and where, here are some interesting links.
http://slady.net/Sinclair-ZX-Spectrum-keyboard/
http://slady.net/Sinclair-ZX-Spectrum-keyboard/layout/
And here some fonts that can be used to print the keyboard
https://www.ffonts.net/ZX-Spectrum-Keyboard-Solid.font.download