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	ZX 81
	Manufacturer Sinclair Ltd. (United Kingdom) Type Desktop Production start (mm-yyyy) - 1981 Production end (mm-yyyy) - RAM 1Kb - 64Kb ROM 8Kb CPU Z80A - 3.5 Mhz Operating System Text (Cols x Rows) 32 x 22 Graphics 64 x 44 Sound Storage memory Tape Serial port Parallel port Others port TV, System Bus Original price   Currency original price 150 USD Units sold Notes   Configurations $100 in kit  User webmaster
	Other pictures Advertising 1983 (Sperimentare may 83) Advertising 1983 Advertising 1983 Advertising 1983 Advertising 1983 Advertising 1983 ZX81 kit - Picture sent by Juanvm ZX81 kit - Picture sent by Juanvm ZX81 kit - Picture sent by Juanvm ZX81 kit - Picture sent by Juanvm ZX81 kit - Picture sent by Juanvm ZX81 kit - Picture sent by Juanvm Taken from Zonadepruebas Retroinformática Advert - 1982
	Video http://it.youtube.com/watch?v=s0BylsTE-Wc
	Manuals ZX81 BASIC Programming - Html   ZX81 Assembly Instructions - Html   ZX81 Assembly Instructions 3.8Mb - Pdf   Rebit Soft Bank (1984) 6.5Mb - Pdf   Memotech memopack HRG 3Mb - Pdf
	Brochures ZX81 personal computer
	Schematic diagrams Schematic diagram   Chips layout   Case assembly   Keyboard connectors

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