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Micro-Prolog Dear Sir, Reference the question in your last magazine about the availability of the program “Prologue” for the ZX Spectrum computer. Sinclair Research commissioned a version of the Prolog language for the Spectrum and sold it for about 30 Brit. pounds. However, when the rights to the Spectrum were transferred to Amstrad, all production…article, orig pub: 10.27.20, updated: 05.31.26

YS Megabasic adds 35 commands to Spectrum basic, several fonts, window capability, sprites, multi-tasking, enhanced sound, named procedures, a Z80 monitor, trace function and more.article, orig pub: 10.27.20, updated: 05.31.26

Convert the 2068 expansion connector to a Spectrum connector; add pull-up resistors to the EXROM socket; Spectrum Hardware Manual by Adrian Dickens; Easy Add On Projects for Your Spectrum, ZX81 & ACE by Owen Bishop.article, orig pub: 10.27.20, updated: 05.31.26

Having converted your 2068 to Spectrum mode of operation, you will find that most British software can be operated successfully from the keyboard, but a joystick might make life a little easier. While the joystick ports may be successfully accessed by the appropriate IN commands, this is of little use for commercial software. A variety…article, orig pub: 10.27.20, updated: 05.31.26

Over 200 pages of educational material, written to be used as a self-teaching course in beginning machine code. Many examples and tips.book, orig pub: 04.05.20, updated: 03.13.26

Subtitle: The only book you’ll ever need to become an expert at the Timex/Sinclair 1000 and 2000book, orig pub: 04.05.20, updated: 03.13.26

Practical programs to do real jobs in a variety of environments. Included is a bulk storage program, word processing, financial applications, banking uses, plus educational programs. Author pushes the ZX81 and casts aside the idea that it is too small for any real computing work.book, orig pub: 04.05.20, updated: 03.13.26

Subroutines for applied math and plotting routines, for both TS 1000 and TS 2068. Available with cassette.book, orig pub: 10.18.20, updated: 02.15.26

30 games ranging from fortune telling programs to simulation of the ecosystem.book, orig pub: 04.05.20, updated: 01.24.26

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: 04.30.26

A 60-room text adventure set in post-apocalyptic Manhattan, with subway transit, key-based door unlocking, and a hot air balloon escape on the rooftop.computer_media, orig pub: 03.19.26, updated: 05.02.26

A DATA-driven melody player for "On Top of Old Smokey" with adjustable tempo, lyric display, and clever ON ERR end-of-data detection.computer_media, orig pub: 04.13.26, updated: 04.14.26

A Snake game that encodes the entire body as a string of position characters and uses a REM-embedded machine code routine to read screen cells for collision detection.computer_media, orig pub: 04.13.26, updated: 04.13.26

Watch a sine wave build point by point across the screen, with live readouts of the x and y values updating at each step.computer_media, orig pub: 04.13.26, updated: 04.13.26

Command eleven named heroes across a living map, recruit armies, and storm the Keep of Darkness in this real-time strategy adventure with autonomous enemy movement.computer_media, orig pub: 04.13.26, updated: 04.13.26

By Wes Brzozowski version 3.0 documentation dated 1-4-86 Welcome to the wonderful world of the CLONE tape copier. this program provides some relatively easy ways to make copies of your tapes. It also allows some of the more advanced programmers to learn of the “hidden spec”, bundled away inside their program’s headers. But before describiing…document, orig pub: 06.04.24, updated: 04.07.26

1986 user manual by Thomas B. Woods for his 32K and 64K non-volatile RAM cartridge for the TS 2068, describing how to install and use the battery-backed RAM board. Congratulations on your purchase of the Universal Dock/Extension Board. This device is design to fit in the Cartridge port on the right side of your I/S…document, orig pub: 01.25.24, updated: 04.04.26

SPRITES 2068 is a machine-code sprite graphics package for the Timex Sinclair 2068 computer. It allows you to define, display, move, and manipulate graphical characters (sprites) on the screen directly from Sinclair BASIC programs. This is a machine-code sprite engine for the Timex Sinclair 2068. It is called from Sinclair BASIC by placing command strings…document, orig pub: 03.30.26, updated: 03.30.26

SPRITES 2068 is a machine-code sprite graphics package for the Timex Sinclair 2068 computer. It allows you to define, display, move, and manipulate graphical characters (sprites) on the screen directly from Sinclair BASIC programs. A “sprite” in this package is a User Defined Graphic (UDG) character or a group of UDG characters that can be…document, orig pub: 03.30.26, updated: 03.30.26

Commented disassembly of the HOME ROM.document, orig pub: 03.27.26, updated: 03.27.26

User Groups Vendorsevent, orig pub: 02.14.23, updated: 03.12.26

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

Newsletter of the Greater Cleveland Sinclair Users Group.periodical, orig pub: 07.10.22, updated: 03.13.26

Newsletter of the Sinclair Milwaukee Users Group (SMUG).periodical, orig pub: 10.02.21, updated: 03.12.26

Newsletter published by Curry Computer for the Sinclair QL.periodical, orig pub: 05.30.22, updated: 02.14.26

Fan-produced magazine for Sinclair QL owners. IQLR was produced using a Sinclair QL with a Super Gold Card, Minerva ROM, Hermes co-processor, QIMI and Keyboard-90 interfaces, Text87 and Hewlett Packard inkjet and laserjet printers.periodical, orig pub: 10.30.20, updated: 02.08.26

Cassette-based magazine supplied with several programs per tape.periodical, orig pub: 03.17.22, updated: 01.24.26

Internally mounted Spectrum/TS 2068 ROM option, similar to ROMSwitch.product, orig pub: 10.19.20, updated: 05.31.26

Fully utilizes TS2068 Extended Color Mode. Select Paper, Ink and Border Colors. Draw and Erase freehand with pen or brush strokes. Features precision circle and line entry functions. Intermix text with graphics. Keep two screen drawings in memory at once. Save & Load screens to cassette tape. Prints a screen image to your Timex printer.product, orig pub: 05.31.26, updated: 05.31.26

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: 05.29.26

The 2020 cassette recorder was one of several peripherals matched the 2068 in design. A variation was also sold by Radio Shack as the Minisette-9. Origin: A Sampo OEM Design The TS 2020 was a Sampo-built recorder sold under many brands. Variations of the same chassis went out as the Realistic Minisette-9 (Radio Shack), and…product, orig pub: 11.30.19, updated: 05.02.26

Simplified version of Art for All Ages for young children.product, orig pub: 12.15.20, updated: 04.12.26

President: Frank DavisVice-President: Paul HolmgrenSecretary: Willie JonesTreasurer: Carol Davisusergroup, orig pub: 02.01.20, updated: 03.29.26

President: Michael E. CarverVice-President: Bill DunlopSecretary: Jack ArmstrongTreasurer: Rod GowenLibrarian: Gaylen Benchusergroup, orig pub: 02.01.20, updated: 03.13.26

Presidents: Neal Schultz, Bill HeberleinVice President: Bill Heberlein, Neal SchultzSecretary: Lloyd Dreger, Bud DankertTreasurer: Judy Frohboese, Dick CulticeDirector of Education: Dick Culticeusergroup, orig pub: 02.01.20, updated: 03.12.26

Website: https://web.archive.org/web/20161116054906/http://ncmedals.com/catug/ The user group had a BBS, using software written and maintained by Bob Swoger and hosted by his employer, Motorola. It was hosted on Digital Equipment Corporation minicomputers. Initially hosted on a PDP 11/23, it later moved to a PDP 11/60. When the PDP went down in 1990, Swoger migrated the BBS to…usergroup, orig pub: 02.01.20, updated: 02.12.26

Fort Worth user group history, semiconductor fab war stories, the 2060 expansion board project, a Baudot telegraph keyboard interface, Joust for the ZX81, and a rescued tape.video, orig pub: 05.17.26, updated: 05.17.26

This music player for the TS2068 reads ProTracker 2 / Vortex Tracker II songs and plays them through the onboard AY-3-8912.video, orig pub: 05.17.26, updated: 05.17.26

We look at the N-Go Spectrum Next clone from Spain, a PC-8300 ZX81 clone, and various tools for converting images to retro computing styles.video, orig pub: 05.17.26, updated: 05.17.26

Ingo's keycap Kickstarter funded 7x in five days. Dr. Beep releases 150 ZX81 games on itch.io.video, orig pub: 05.03.26, updated: 05.03.26

Our meeting covered keyboard Kickstarter plans, Pascal compilers, AI-assisted coding, TS-Pico debugging, and RAM expansion techniques.video, orig pub: 03.16.26, updated: 05.03.26