Page with support files for Sinclair ZX81 and Timex TS1000/TS1500.

Software library, reviews, news, emulators for various platforms.

Technical specifications and pictures of the Sinclair ZX81 with comments from other ZX81 owners.

Aims to preserve ZX81 related documents in digital form.

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.

Tony Smith writes about the availability of ZX81 DIY kits.

Article from Personal Computer World by David Tebbutt.

Collection of original Sinclair ZX81 hardware, software and literature. Photos and description for each item.

Some common questions about the ZX81.

Links and information from an enthusiast.

Memory map of the RAM reserved by the system.

A project to design and build an enhanced, low power discrete logic version of the ZX81.

Timex-Sinclair ZX81 computer kits for sale.

A modern version of the ZX80, ZX81 for the home hobbyist builder.

A very active german Sinclair ZX81 users group.

How to build your own ZX80 and ZX81.

Author of the original 1980's 'Caverns' game offers a PC remake for download. Includes game history and instructions.

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 the Sunrise Technology".

Suppliers of ZX81 games and emulators on CD, enabling you to reproduce the ZX81 on your Windows PC.

A ZX81 software archive.

Pictures, newsletters and programs made with the ZX81, a 16kb rampack and a Timex 2040 printer. Updated monthly.

A ZX81 FAQ, emulator and software links.

UK based sales and support of ZX81 computers in kit form, also related peripherals and books.

Collection of ZX81-related documentation plus hardware and software projects.

Contains links, a scanned copy of the ZX81 manual as well as ZXTAPE, a DOS-based utility to transfer ZX81 software from a PC to a ZX81 or tape recorder, and to transfer ZX81 software from tape back to PC.

A European supplier of the classic Sinclair ZX81 computer in Kit form.