retro_computing

solhsa.com - X80 Tutorials (solhsa.com)

https://solhsa.com/z80/index.html

Building a game for the Spectrum from scratch in Z80 using sjasmplus

retro_computing zx_spectrum

Gameboy Technical Documentation (gbdev.io)

https://gbdev.io/pandocs/

Pretty comprehensive documentation of the Gameboy's hardware and that of related peripherals (eg the Gameboy Printer).

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EDSAC on browser (nhiro.org)

http://nhiro.org/learn_language/repos/EDSAC-on-browser/index.html

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External floppy drive cable for the Spectrum +3 (zxnet.co.uk)

https://zxnet.co.uk/spectrum/plus3_external_floppy_cable

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Dumping Spectrum +3 Disks (tzxvault.org)

http://www.tzxvault.org/help.htm

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Mounting a 3" disc drive on a PC (fvempel.nl)

http://www.fvempel.nl/3pc.html

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