ZX81
Matthew's ZX81 Homepage
Software library, reviews, news, emulators for various platforms.
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 ZX-81 back from the dead
Tony Smith writes about the availability of ZX81 DIY kits.
Sinclair ZX81 Collection
Collection of original Sinclair ZX81 hardware, software and literature. Photos and description for each item.
System Variables of the Sinclair ZX81
Memory map of the RAM reserved by the system.
The ZX97 by Wilf Rigter
A project to design and build an enhanced, low power discrete logic version of the ZX81.
ZX81 - Planet Sinclair
Information, photos and resources for the Sinclair ZX80, including a detailed account of its development extracted from Ian Adamson and Richard Kennedy's book "Sinclair and th…
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 and TS1000 Projects for 2005
Hardware projects for the ZX81 and TS1000. Some circuit diagrams and notes.
ZX81 Forever
Pictures, newsletters and programs made with the ZX81, a 16kb rampack and a Timex 2040 printer. Updated monthly.
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