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Overview The TS2000 series of computers claims an extensive group of features of hardware and software. The machines feature 24K ROM. The TS2048 has 16K RAM at its disposal while the TS2068 wields a well-utilized 48K RAM. CPU and Operating System The TS2000 uses a Z80A microprocessor running at 3.5MHz. It contains a few buffers,…article, orig pub: 10.27.20, updated: 11.30.25

In the time that I’ve been doing the QHJ I have received responses like “good job”, “nice work”, but very little actual comments (good or bad) on the overall content of the QHJ. In thinking of what to put into this issue, the idea of a reader survey popped in to my head. I am…article, orig pub: 11.30.25, updated: 11.30.25

Back in QHJ #13 I have a cursory review of the Prolog interpreter written by Hans Lub. I said that when I found the book that the interpreter was based upon, I could look into it further. Well, I found the book; The Art of Prolog by Sterling and Shapiro. Even though Hans described the…article, orig pub: 11.30.25, updated: 11.30.25

I have recently found a QL FTP site that allows the storage of binary files. The site name is: maya.dei.unipd.it I am guessing that it is being run by one of the Zannetti brothers in Italy. The key advantage of this FTP site is the fast distribution of QL software. As an example, version 4…article, orig pub: 11.30.25, updated: 11.30.25

I’m still distracted by my other hobby, wargaming. In tying the two together, I thought about dice, percentages, and To-Hit rolls. In gaming a To-Hit roll is a die roll, where your try to roll a certain value or less. For example, for a To-Hit roll of 10 with 2 six-sided die (2d6), you would…article, orig pub: 11.30.25, updated: 11.30.25

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

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

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: 11.02.25

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. US Employeescompany, orig pub: 06.19.19, updated: 11.02.25

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

Machine language information storage and retrieval database for the 2068, configured specifically to run as a cartridge.computer_media, orig pub: 08.13.23, updated: 10.11.25

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

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

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

The TS2060 Interface Unit provides the electronics, connectors, and firmware to adapt the TS2068 Computer to control: Outputs will also included: Initially, the design of the interface unit was executed in LS-TTL to speed first production deliveries. A parallel effort was planned to provide a cost reduced version in gate array technology. The cabinetry and…product, orig pub: 11.30.19, updated: 11.12.25

Additions to Pro/File 2068, including 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 Robert Fischer’s routines in Extensions.product, orig pub: 11.07.25, updated: 11.07.25

950 files/64K. Each file holds:product, orig pub: 11.06.25, updated: 11.06.25

Telephone dialing hardware/software add-on for the ZX81/TS1000/TS1500 which stores as many telephone numbers as you have room for and calls any one of those number for you on command.product, orig pub: 11.05.25, updated: 11.05.25

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: 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

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

Zebra Systems is among the organizations profiled in this Wall Street Journal Report Show. (Circa 1988)video, orig pub: 09.24.25, updated: 09.24.25