ZX81

Obsolete Computer Museum's ZX-81 Page - Technical specifications and pictures of the Sinclair ZX81 with comments from other ZX81 owners.
www.obsoletecomputermuseum.org/zx81/

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.
www.angelfire.com/ab6/rodneyknaap/

Sinclair ZX81 Collection - Collection of original Sinclair ZX81 hardware, software and literature. Photos and description for each item.
zx81.atspace.com

Sinclair ZX81 FAQ - Some common questions about the ZX81.
www.honneamise.u-net.com/zx81/zx81faq.html

Steven's ZX81 Computer - Links and information from an enthusiast.
www.geocities.com/CapeCanaveral/Hangar/1969/zx81/

System Variables of the Sinclair ZX81 - Memory map of the RAM reserved by the system.
www.penelope.demon.co.uk/zx81/sysvars.html

Zebra Systems, Inc. - Timex-Sinclair ZX81 computer kits for sale.
www.zebrasystems.com/zebrasystems/zx81/index.html

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 the Sunrise Technology".
www.nvg.org/sinclair/computers/zx81/zx81.htm

The ZX97 by Wilf Rigter - A project to design and build an enhanced, low power discrete logic version of the ZX81.
www.howell1964.freeserve.co.uk/ZX81/ZX97.htm

ZX81 'Caverns' Game - PC Remake - Author of the original 1980's 'Caverns' game offers a PC remake for download. Includes game history and instructions.
www.users.globalnet.co.uk/~mart03/zx81.htm

ZX81 Download Page - A ZX81 software archive.
www.zx81.nl

ZX81 Forever - Pictures, newsletters and programs made with the ZX81, a 16kb rampack and a Timex 2040 printer. Updated monthly.
www.zx-team.de/andre

ZX80 hardware page - How to build your own ZX80 and ZX81.
home.micros.users.btopenworld.com/zx80/zx80.html

ZX81 Home Page - A ZX81 FAQ, emulator and software links.
www.honneamise.u-net.com/zx81/

ZX81 kit - UK based sales and support of ZX81 computers in kit form, also related peripherals and books.
www.zx81kit.co.uk

ZX81 Stuff - Collection of ZX81-related documentation plus hardware and software projects.
www.howell1964.freeserve.co.uk/ZX81/ZX81.htm

ZX81 Virtual Community - 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.
www.geocities.com/SiliconValley/Ridge/9965/index.html

ZX81Kit .Com - A European supplier of the Sinclair ZX81 computer in kit form. Also contains useful information and links, and other ZX81 hardware is available.
www.zx81kit.com/

ZX-TEAM - An active German Sinclair ZX81 users' group. Site offers information about the Sinclair machines and the group's activities, including news of forthcoming events, nn English and German.
www.zx81.de/

Sinclair ZX-81 back from the dead - Tony Smith writes about the availability of ZX81 DIY kits. <small>(October 6, 2000)</small>
www.theregister.co.uk/2000/10/10/sinclair_zx81_back/

Sinclair ZX81 Benchtest - Article from Personal Computer World by David Tebbutt. <small>(June, 1981)</small>
www.nvg.ntnu.no/sinclair/computers/zx81/zx81_pcw0681.htm