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Nov 14 2026

Scrolling Color Bars in the TS 2068’s Hi-Color Mode

By David Anderson / 11 minutes of reading

On a ZX Spectrum, color comes in 8×8 blocks: one ink and one paper for every character cell. That’s where color clash comes from. The TS 2068’s SCLD has a second way to color the screen, its hi-color mode, with one ink and one paper for every 8×1 strip of pixels.

Scrolling Color Bars in the TS 2068’s Hi-Color ModeRead More »

Nov 7 2026

Sinclair in Print, 1980–2026

By David Anderson / 2 minutes of reading

The ZX80 reached American readers in 1980, and the dedicated press arrived almost at once: Syntax began in 1980 alongside the ZX80, and SYNC followed in January 1981. Mainstream magazines like InfoWorld, Creative Computing, Compute! and Byte covered the machines too.

Sinclair in Print, 1980–2026Read More »

Music Design 2000 screen
Oct 28 2026

Homegrown: North American software for the Timex/Sinclair 2068

By David Anderson / 85 minutes of reading

Eighty-one programs from the American and Canadian users of the TS2068: games, desktop publishing, music, languages, disk systems and bulletin boards, made for a computer whose maker left the market a few months after it went on sale.

Homegrown: North American software for the Timex/Sinclair 2068Read More »

Oct 28 2026

Homegrown: North American software for the Timex/Sinclair 1000

By David Anderson / 68 minutes of reading

Seventy-one programs written, sold and swapped by the American and Canadian users of the TS1000: games, graphics, music, tools and hardware projects that went well past what the little black computer was built to do.

Homegrown: North American software for the Timex/Sinclair 1000Read More »

Oct 18 2026

Using Timex’s Dual Screen Mode Support

By David Anderson / 10 minutes of reading

The TS2068 has a second display file at 24576 (6000h). The hardware can show it, the EXROM has a routine to open it, but BASIC has no way to write to it. Timex wrote a machine-code module to fill that gap.

Using Timex’s Dual Screen Mode SupportRead More »

Oct 18 2026

Writing Channel Code for the TS 2068

By David Anderson / 20 minutes of reading

The TS-Pico, a Raspberry Pi Pico board that gives the 2068 an SD card, comes with its own ROM, and that ROM gives the 2068 two new kinds of channel: f: reads and writes files on the SD card, and d: reads folder listings.

Writing Channel Code for the TS 2068Read More »

Sep 22 2026

Vintage Computer Festival MidWest 2026, Part 4

By David Anderson / 5 minutes of reading

Last in a series on VCF Midwest 21. Part one, part two, part three. The first two pieces in this series were about hardware being designed now. This one is about hardware somebody already built, in some cases forty years ago, by people whose names we mostly do not have.

Vintage Computer Festival MidWest 2026, Part 4Read More »

Sep 22 2026

Vintage Computer Festival MidWest 2026, Part 3

By David Anderson / 6 minutes of reading

Third in a series on VCF Midwest 21. Part one, part two. The Timex Sinclair 2060 Bus Expansion Unit was not a rumor or a sketch. Timex showed it at the Consumer Electronics Show in Las Vegas in January 1984, priced it at $120, and according to Bill Skyrme, who worked on it, had it through engineering and ready for production.

Vintage Computer Festival MidWest 2026, Part 3Read More »

Sep 22 2026

Vintage Computer Festival MidWest 2026, Part 2

By David Anderson / 6 minutes of reading

Second in a series on VCF Midwest 21. Part one is here. Consider what a Timex Sinclair 1000 actually gives you out of the box in 2026. One kilobyte. A membrane keyboard. No sound. No storage but a cassette deck you no longer own.

Vintage Computer Festival MidWest 2026, Part 2Read More »

Sep 22 2026

Vintage Computing Festival MidWest 2026

By David Anderson / 8 minutes of reading

Eight of us from the Timex/Sinclair Online User Group took three tables at VCF Midwest 21 in Schaumburg on September 12 and 13. Joe VandeZande, Jeff Fetta, Peyton Bratton, Carl Miles, John Mark Mobley, Mark Martin, Evan Wright, Stewart Newfeld, David Green and me, plus assorted spouses and children who put up with us for a weekend.

Vintage Computing Festival MidWest 2026Read More »

Jun 7 2026

Pro/File +5: The Machine-Code Module

By David Anderson / 24 minutes of reading

Pro/File +5 is Tom Woods‘ database for the TS2068, with later modifications by Robert Fischer. The BASIC program carries the interface — menus, editing, print formatting — and hands the slow work to a 2,046-byte machine-code module loaded at 63488 ($F800).

Pro/File +5: The Machine-Code ModuleRead More »

Posts pagination

1 2 … 8 Next →

Recent Posts

  • Scrolling Color Bars in the TS 2068’s Hi-Color ModeNovember 14, 2026
  • Sinclair in Print, 1980–2026November 7, 2026
  • Homegrown: North American software for the Timex/Sinclair 2068October 28, 2026
  • Homegrown: North American software for the Timex/Sinclair 1000October 28, 2026
  • Using Timex’s Dual Screen Mode SupportOctober 18, 2026

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