=== Links ===
* [https://worldofspectrum.net/pub/sinclair/technical-docs/ZXSpectrum128K_OriginalTechnicalSpecification(1985).pdf ZX Spectrum 128 Specification]
*[[Media:ZX-Spectrum-128-Service-Manual.pdf]]
* http://scratchpad.wikia.com/wiki/ZX_Spectrum_technical_information
* https://sinclair.wiki.zxnet.co.uk Sinclair Wiki