Recent additions and updates to TimexSinclair.com
Recently added or updated Articles
At the beginning of 1980 Clive Sinclair started selling his first computer, the ZX80. The initial purpose was to take the technology of the day and make it affordable to everyone. By pushing that technology to it’s limits, the ZX80 exploded the limits of price/performance — a full powered computer that sold for less than…article, orig pub: 01.04.26, updated: 01.04.26
This month marks the second anniversary of the Timex decision to exit the home computer market. Many of us thought that it would all end then, but, happily, we are still here and stronger than ever. When Timex was still around, there was very little third party development going on, but now it is these…article, orig pub: 01.04.26, updated: 01.04.26
Well, here we are again at the end of another year and we still haven’t given up on our computers. In fact, more has happened in the Sinclair world this year than has happened in any single year since this column began. Therefore, before we say Hello to 1987 lets have a look back at…article, orig pub: 01.04.26, updated: 01.04.26
At long last I have a new Sinclair QL (for Quantum Leap) in front of me. In fact, this column is being written on it using the bundled word processing software. Available for a little more than a year in the United Kingdom, QLs are just now becoming readily available here in the United States.…article, orig pub: 01.04.26, updated: 01.04.26
The Timex Sinclair Amateur Radio Users Group is made up of computer users who are interested in putting their Timex or Sinclair computers to use in amateur radio operations. Most of the members are not computer experts, but they do have good technical backgrounds in electronics. So they learn quickly about their computers. Most members…article, orig pub: 01.04.26, updated: 01.04.26
Recently added or updated Books
50 ready-to-run educational programs demonstrate scores of different techniques for solving problems in mathematics, science, and business. 10 chapters deal with solving problems by formulas and repetitive trials, convergence, recursion, compounding, probability, geometry, science, simulations, and drill and practice. Some problems demonstrate the capabilities of the computer; others identify its shortcomings.book, orig pub: 04.05.20, updated: 11.06.25
Subtitle: For the T/S 1000, 1500, and 2068 Computers. Here are 32 entertaining new games programs written in Timex/Sinclair BASIC. These fun and exciting games are written for all the Timex/Sinclair home computers, including the classic 1000, the new 1500 Personal Computer, and the 2068 Color Computer. All the programs have been fully tested and…book, orig pub: 04.05.20, updated: 11.06.25
Table of Contents GAMES FOR YOUR TIMEX-SINCLAIR 2000 was first published in Great Britain by Virgin Books Ltd. under the title GAMES FOR YOUR ZX SPECTRUM as part of the Virgin Computer Games Series. The author, Peter Shaw, was a 16-year-old schoolboy who has contributed to Interface magazine and to ZX Computing.book, orig pub: 04.05.20, updated: 11.05.25
book, orig pub: 04.05.20, updated: 11.05.25
Introduction to Basic programming for those with no previous computer experience. Easy to digest format leads the user through hands-on examples of programs in the early chapters and helps develop skills gradually for more complex programs.book, orig pub: 04.05.20, updated: 11.05.25
Recently added or updated Companies
company, orig pub: 01.03.26, updated: 01.03.26
company, orig pub: 01.03.26, updated: 01.03.26
company, orig pub: 11.06.25, updated: 11.06.25
company, orig pub: 11.05.25, updated: 11.05.25
company, orig pub: 12.27.19, updated: 11.05.25
Recently added or updated Computer Media
Entry for the Vintage Computing Christmas Challenge 2025.computer_media, orig pub: 12.21.25, updated: 12.21.25
Short program that give a moving graphics representation of the holiday spirit.computer_media, orig pub: 12.21.25, updated: 12.21.25
computer_media, orig pub: 06.18.23, updated: 12.20.25
Watch your computer trim a tree on the screen and surround its base with beautifully wrapped presents, while the tree lights flicker.computer_media, orig pub: 11.01.25, updated: 11.01.25
Display a Thanksgiving turkey on your screen.computer_media, orig pub: 10.31.25, updated: 10.31.25
Recently added or updated Documents
Notebook consisting of notes about development of Timex Disk Operating System (TDOS) and CP/M for the Timex/Sinclair 2068. A re-typed copy of the notebook is also available on archive.org.document, orig pub: 12.26.23, updated: 11.30.25
The enclosed tape will include almost all the improvements from the manual except where they are no longer appropriate (the machine code sort makes the block sort outdated), or improved by my own routines in Extensions, or one case where you may not want it included. For those who want it, instructions are included here…document, orig pub: 10.26.25, updated: 11.07.25
KAPKIT is a utility program for the ZX81, TS1000 and TS1500.document, orig pub: 06.04.24, updated: 11.07.25
INTRODUCTION TO THE CARTRIDGE PRO/FILE 2068 During the period that the original cassette version of Pro/File has been out, many improvements have been suggested by owners. This cartridge version, in addition to making use of the 2068’s bank switching mechanism, also incorporates many of these advancements which all contribute toward making the cartridge Pro/File far…document, orig pub: 10.29.25, updated: 10.29.25
Artic Assembler and Z-80 Programming An Introduction The Artic Assembler was the first assembler and maybe only one offered for sale locally in the shops catering to the Sinclair ZX-81/TS1000. It once sold for about $50 and came on cassette with a 26 page manual that was not all that well written or edited. This…document, orig pub: 06.03.23, updated: 10.27.25
Recently added or updated Events
Vendorsevent, orig pub: 11.27.25, updated: 11.27.25
Fourth annual event. Held at the Hara Arena in Dayton, Ohio on August 28th and 29th. Tim Swenson hosted the first of several after-fest BBQs at his house in Dayton this year. Several of the attendees appear in the photos below.event, orig pub: 03.30.23, updated: 02.24.24
Organized by Tim Swenson, the West Coast Sinclair Show was held in Union City, CA, on 5 June 1999, one week after the East Coast Sinclair Show. Vendors The key visitor to the show was the renowned author Stan Kelly-Bootle, writer of many computer books, including the “Devil’s DP Dictionary”, and the holder of the…event, orig pub: 07.04.21, updated: 07.10.23
Two day fair in Canada.event, orig pub: 07.04.21, updated: 07.10.23
User Groups Vendorsevent, orig pub: 02.14.23, updated: 07.10.23
Recently added or updated Periodicals
Published by Timothy Swenson.periodical, orig pub: 10.28.20, updated: 11.18.25
Joint publication of three user groups in the San Francisco, San Jose and Oakland Bay area.periodical, orig pub: 12.18.19, updated: 11.06.25
Created by Dave Franson to support the Timex (TMX) Portugal disk drive systems sold by English Micro Connection and Zebra Systems. Succeeded by FDD Express.periodical, orig pub: 09.16.22, updated: 11.06.25
Timex Sinclair News intended to keep owners up to date on events in the US and abroad.periodical, orig pub: 02.25.22, updated: 11.06.25
Quarterly newsletter filled with games and ideas for the Sinclair.periodical, orig pub: 10.17.20, updated: 11.06.25
Recently added or updated Products
STD Bus interface with a Z-80 PIO to control mode switching of two operating systems on Port B. Port A is available from the front panel and has four handshake lines on a ribbon connector. The computer will operate alone, with 2K RAM and 9v with a Sinclair type keyboard. or on the STD bus.…product, orig pub: 01.03.26, updated: 01.03.26
Compute payment, capital, years, or interest for equal payment loans. 16K.product, orig pub: 01.03.26, updated: 01.03.26
For decreasing payment loans and CD’s. Dates, computed or optional principal. True amortization. 16K.product, orig pub: 01.03.26, updated: 01.03.26
For most equal payment loans and CD’s. Dates, computed or optional payment. True amortization. 16K.product, orig pub: 01.03.26, updated: 01.03.26
Analyzes large buildings. Calculates annual heating and cooling consumption based on hourly weather, design, schedule inputs; lighting, fans, pumps; multiple zone buildings; what-if situations. Requires 32K RAM.product, orig pub: 11.30.19, updated: 01.01.26
Recently added or updated User Groups
This informal group has twice a month meetings online (via Zoom). Like in-person user group meetings, we have guests, talk about our projects and a wide array of computing topics. This group has its origins in the Yahoo TS 2068 Group, which migrated to groups.io when Yahoo Groups shut down. Join Our Email List Sign…usergroup, orig pub: 04.21.23, updated: 12.07.25
Newsletter editor: Ed Kingsley Newsletter: NESQLUG Newsusergroup, orig pub: 10.28.20, updated: 11.12.25
Contact: Dan Williamsusergroup, orig pub: 02.01.20, updated: 11.12.25
usergroup, orig pub: 02.01.20, updated: 11.06.25
usergroup, orig pub: 11.06.25, updated: 11.06.25
Recently added or updated Videos
In this meeting, we reviewed the history of the Timex Computer Corporation and development of the Timex/Sinclair 1000, Timex/Sinclair 1500 and Timex/Sinclair 2068 computers. David presented material from documents preserved by Lon Hildreth and others.video, orig pub: 12.21.25, updated: 12.21.25
We discussed shared community history and technical knowledge. We talked about the evolution of user groups from 1980s, who often had printed newsletters (CATS, Update, Chicago-area publications), through Yahoo groups to current online forums.video, orig pub: 11.17.25, updated: 12.06.25
We showed off a seasonally appropriate turkey program and shared updates on projects.video, orig pub: 11.17.25, updated: 11.18.25
Carl Miles presented his projects including a 'super' expansion for classic computers, and a modern TS1000 motherboard replacement. David gave an update on an updated 2060-style bus expansion unit.video, orig pub: 10.20.25, updated: 10.20.25
Alger Salt joined and took us back to the early 1980s, when he and a colleague built an analog interface for the ZX81/TS1000 cassette input. And we we talked about robots.video, orig pub: 10.14.25, updated: 10.14.25