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Obsolete Computer Museum's ZX-81 Page
- Technical specifications and pictures of the Sinclair ZX81 with comments from other ZX81 owners.
Rodney Knaap: Build your own ZX81
- ZX81 hardware website featuring a project for building your own ZX81 with discrete components as well as Wilf Rigter's ZX97. In English, Dutch and German.
Sinclair ZX81 Collection
- Collection of original Sinclair ZX81 hardware, software and literature. Photos and description for each item.
- An active German Sinclair ZX81 users' group. Site offers information about the Sinclair machines and the group's activities, including news of forthcoming events, in English and German.
ZX81 'Caverns' Game - PC Remake
- Author of the original 1980's 'Caverns' game offers a PC remake for download. Includes game history and instructions.
ZX81 Download Page
- A ZX81 software archive.
Small black box of computing desire
- The BBC reminisces about the memory-efficient programming motivated by the 1k ZX81. (March 11, 2011)
Sinclair ZX-81 back from the dead
- Tony Smith writes about the availability of ZX81 DIY kits. (October 06, 2000)
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