↑BBC News (23 April 2007). "How the Spectrum began a revolution". Portland Place, London, W1A 1AA, England, UK: British Broadcasting Corporation of Broadcasting House. Archived from the original on 12 January 2009. Retrieved 31 March 2015. The Spectrum's reign as the UK's most popular computer was brief but its legacy and the affection in which it is held remains to this day.
↑Dickinson، Rick (2 يوليه 2007). "specLOGO02 (ZX81 Colour devel.)". Sinclair Spectrum development. معمول ارشيف من الاصل فى 2014-03-30. اتشاف بتاريخ 2015-04-02. Graphics naming study – seemed logical to call the Spectrum the colour version of the ZX81
↑Dickinson، Rick (2 يوليه 2007). "specModel01 (ZX82 devel.)". Sinclair Spectrum development. معمول ارشيف من الاصل فى 2013-12-17. اتشاف بتاريخ 2015-04-02. Early model, all black with dark blue keys, not even the Sinclair logo, or colour reference – must have been a minimalist attempt
الصفحه دى فيها تقاوى مقاله عن المملكه المتحده. و انت ممكن تساعد ويكيپيديا مصرى علشان
تكبرها. 
الصفحه دى فيها تقاوى مقاله عن كومپيوتر. و انت ممكن تساعد ويكيپيديا مصرى علشان
تكبرها.