ZX Spectrum graphic modes - Wikipedia

About – ZX SPECTRUM NEXT

FAQ - SpecNext official Wiki

ScummVM

List of 8-bit computer hardware graphics - Wikipedia

systems:zxspectrum [Batocera.linux - Wiki]

UFA, Crossover Wiki

Knight Lore — StrategyWiki Strategy guide and game reference wiki

GFX ZONE - ZX-Spectrum graphics modes

Space Shuttle Avionics - FlightGear wiki

GitHub - brendanalford/zx-diagnostics: Firmware to allow functional testing of ZX Spectrum hardware and related clones. See the wiki for full details.