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A fun crossword featuring the Timex/Sinclair computers.article, orig pub: 07.11.25, updated: 07.11.25

This is a look at the DEF FN keyword of Sinclair BASIC and its companion function FN because it was a feature I used very little, and that I recently dug into and found some surprises.article, orig pub: 07.11.25, updated: 07.11.25

As mentioned previously, I was drawn to computers for their mathematical side rather than games. When looking through the newsletters that David Anderson has scanned and posted to The Internet Archive, I ran across a number of math articles and I thought I would document them here.article, orig pub: 07.11.25, updated: 07.11.25

I thought about playing more with sound on the ZX81 or T/S 2068. The Zon X-81 and the T/S 2068 both use the AY-3-8910 Programmable Sound Generator (PSG) and they both interface with the PSG by using the PSG registers, so any sound settings will be usable on both. I tried the SOUND command on…article, orig pub: 07.11.25, updated: 07.11.25

Dr. Beep (Johan Koelman) has released 1K versions of two classic arcade games, Asteroids and Missile Command. These games are normal resolution games that fit in 1K (vs his Hi-Res 1K games).article, orig pub: 07.11.25, updated: 07.11.25

Tutorial on “how to get started”, necessary equipment and software, Timex Sinclair BBS phone numbers and info about each one. Includes the QL. Table of Contentsbook, orig pub: 09.08.20, updated: 03.20.25

Full subtitle: Basic Programming on Personal Computers by Apple, Atari, Commodore, Radio Shack, Texas Instruments, Timex Sinclair.book, orig pub: 04.05.20, updated: 02.06.25

This is a book for people who want to know how the Timex ticks. It will guide you, even if you have no knowledge of electronics, to an understanding of what is going on inside the case of your computer. The book is in two sections; the first deals with the fundamental principles behind computer…book, orig pub: 04.05.20, updated: 02.01.25

Sinclair Research was the most recognizable of a series of names for a company Clive Sinclair started to produce his many inventions. Sinclair Research designed, marketed and sold the MK-14, ZX80, ZX81, ZX Spectrum, QL and a variety of other products.company, orig pub: 06.19.19, updated: 04.15.25

While the Timex Corporation is best known for its watches, it also produced a number of other products since its inception as a clock company in the mid-1800s. During World War II, the company produced fuse timers for defense products, continuing through the 1950s and the Korean war. After the Korean war ended, Timex expanded…company, orig pub: 06.19.19, updated: 04.15.25

This ZIP file contains the programs and code samples from ZXzine issue 1.computer_media, orig pub: 07.11.25, updated: 07.11.25

This ZIP file contains the programs and code samples from ZXzine issue 2.computer_media, orig pub: 07.11.25, updated: 07.11.25

This ZIP file contains the programs and code samples from ZXzine issue 4.computer_media, orig pub: 07.11.25, updated: 07.11.25

This ZIP file contains the programs and code samples from ZXzine issue 5.computer_media, orig pub: 07.11.25, updated: 07.11.25

This ZIP file contains the programs and code samples from ZXzine issue 6.computer_media, orig pub: 07.11.25, updated: 07.11.25

KRADLE eliminates the major deficiencies of your Timex / Sinclair computer with a full-sized 50 key keyboard, 64K bytes of RAM, a cassette read enhancer, a joystick interface, and other good things in a compact metal case that also holds your fully assembled computer. KRADLE installs easily and requires no computer disassembly. Its low-power design…document, orig pub: 04.02.25, updated: 06.20.25

1.0 Scope This product specification describes the TS2060 Interface Unit, drives, and associated software. The functional, physical, electrical, and environmental characteristics are specified. A description of the operation of the TS2068 system with this unit is included. 2.0 Applicable Documents 3.0 Product Overview The TS2060 Interface Unit provides the electronics, connectors, and firmware to adapt…document, orig pub: 12.26.23, updated: 03.19.25

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

User Groups Vendorsevent, orig pub: 02.25.23, updated: 07.10.23

Actively published e-zine, produced with open source software.periodical, orig pub: 11.13.21, updated: 06.02.25

Newsletter of the Clackamas County Area Timex Sinclair Users Group.periodical, orig pub: 12.11.19, updated: 02.09.25

Published by Timothy Swenson. Available online.periodical, orig pub: 10.28.20, updated: 02.01.25

Newsletter of the (Ottawa-Hull) Timex-Sinclair User Group.periodical, orig pub: 06.13.21, updated: 02.01.25

Quarterly published by Tom Woods. Provided updates and more to owners of ZX Pro/File databasesperiodical, orig pub: 06.05.22, updated: 01.22.25

Code and edit a source program in the Z80 language and assemble it into machine code. Editor mode allows you to code directly in the right format, manipulate individual lines and control the exact placing of source and machine code. Routines may be merged or listed. Assembler mode handles all standard Z80 mnemonics, numbers in…product, orig pub: 11.30.19, updated: 07.11.25

Cased keyboard with 52 keys, 12 of which are on the number pad. Case measures 15 x 9 x 2 1/2″. Computer fits inside (removed from original case). Comes with motherboard to attach RAM and extend expansion bus to rear edge of case.product, orig pub: 11.30.19, updated: 05.03.25

EPROM demonstrators intended for use in stores as selling tools. EPROM contains a BASIC demonstration program that starts on power up. It includes graphics and interactive examples of what the computer could do. A description of the kiosk retailers could purchase that used this demonstrator is in the Timex Price List 1983. The E. Arthur…product, orig pub: 12.13.20, updated: 04.18.25

Carrying cases custom molded for TIMEX Corporation. They resemble small attache cases, approximately 13 1/2″ x 10″ x 3 1/2″, have a black leather-like texture, distinctive Timex/Sinclair logo, and feature small fold—away carrying handles. Each case has seven individual compartments for the following items: Only 2,000 were produced.product, orig pub: 01.20.20, updated: 04.01.25

Displays and prints disassembled listings or hexadecimal dumps. Disassembles full instruction set using standard Zilog mnemonics. Memory examine, search and modify. LOAD and STOP any program for disassembly or backup. 16K.product, orig pub: 11.22.20, updated: 03.30.25

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: 06.12.25

Contact: Robert Pearsallusergroup, orig pub: 02.01.20, updated: 05.18.25

In 1988, at the Sunstate Timex/Sinclair Winterfest, a group of enthusiasts proposed a nation-wide user’s group. The name of the group, Sinclair Northamerica Users Group (SNUG), made it clear it intended to include all users in Canada, Mexico and the United States. Mel Nathanson and Mary Lynn Johnson were the initial contacts. The group had…usergroup, orig pub: 06.17.20, updated: 04.07.25

Users living in the area around Tampa Bay. Also known as Timex and Sinclair Bay Area Microcomputer Users Group. Formerly known as SAM BAM (Sinclair and MicroAce Bay Area Microcomputer Users). President: Mel NathansonSecretary: Will BeckerTreasurer: John CushmanEditors: Will Becker, Warren Reed Newsletter: Keyboardsusergroup, orig pub: 10.19.20, updated: 03.29.25

Contact: Peter Wolcott Name changed to Timex/Sinclair Users Group of Kansas City in 1984. Newsletter: Computer Users Group Timex Sinclair 1000 & ZX80/81 Newsletterusergroup, orig pub: 02.01.20, updated: 03.29.25

Tim Swenson discussed his recent participation in a QL forum meeting; we talked about Forth, chatted about the ZX Spectrum Next, and covered the Timex/Sinclair 1000 manual in our Book Nook.video, orig pub: 07.01.25, updated: 07.01.25

We discussed the original ZX81 manual in this meeting's "Book Nook" and talked about the coordination for VCF Midwest.video, orig pub: 06.12.25, updated: 06.12.25

We welcomed a new member, talked about AI-written theme songs, a recent reunion of Timex Portugal employees, discussed the 2068 user manual and Ryan gave an overview of building recursive functions with DEF FN.video, orig pub: 05.24.25, updated: 05.24.25

Jeff gave us an overview of the TS 2060 hardware design and features. We discussed the design of the enclosure and potential pricing. And we talked a bit about VCF Midwest.video, orig pub: 05.09.25, updated: 05.09.25

Our meeting included introductions from four new-to-the-Zoom meeting members, as well as updates on Greg Bennett's Wordle program and the TS 2060 project.video, orig pub: 05.09.25, updated: 05.09.25