Welcome to TimexSinclair.com, your definitive resource for everything related to the Sinclair and Timex/Sinclair computers in the United States. From the groundbreaking Sinclair ZX81 that brought affordable computing to American homes in 1982, to the Timex/Sinclair 2068, we celebrate these remarkable machines that introduced a generation to the world of programming and digital innovation.

Timex/Sinclair

The American chapter—Timex brought Sinclair’s vision to U.S. homes.


1982

Timex/Sinclair 1000

The U.S. version of the ZX81, available for under $100 at retail stores across America. This machine democratized computing in the United States.

1983

Timex/Sinclair 1500

Enhanced version of the Timex/Sinclair 1000 with 16K RAM built in, ZX Spectrum style case and keyboard.

1983

Timex/Sinclair 2068

Color graphics, sound capabilities, and a cartridge port made the 2068 the ultimate U.S. Sinclair experience with serious computing power.

Sinclair

The pioneering machines from Clive Sinclair that revolutionized home computing.


1980

Sinclair ZX80

The machine that started it all—revolutionary for its price point and brought computing to everyday people.

1982

Sinclair ZX Spectrum

The ZX Spectrum brought vibrant color graphics and sound to the home computer market, selling over 5 million units worldwide.

1981

Sinclair ZX81

The machine that brought computing to the masses. Sold over 1.5 million units worldwide—legendary affordability and hackability made it an icon.

1984

Sinclair QL

Sinclair’s ambitious 32-bit business computer. Multitasking OS, built-in Microdrives—ahead of its time with professional aspirations.

1987

Cambridge Z88

Sinclair’s ambitious 32-bit business computer. Multitasking OS, built-in Microdrives—ahead of its time with professional aspirations.

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A 68000 assembler program, BLANK_EXE, that blanks the QL's screen after about three minutes without a keypress, to keep a static image from burning into the monitor's phosphor; pressing the space bar brings the screen back. The full commented source is listed, and the author offers the ready-to-use program to readers without an assembler.article, orig pub: 11.11.26, updated: 11.11.26
PRETTY_BAS, a SuperBASIC utility that rewrites a program file with its listing indented to show the structure of procedures, loops and IF blocks. A before-and-after example shows the effect, and the full listing (marked "enhanced version -mtl") follows; it asks for a source file and an optional destination name.article, orig pub: 11.11.26, updated: 11.11.26
DLO_BAS ("disk label organizer"), a SuperBASIC program that reads a floppy disk's directory, sorts the file names alphabetically and prints a compact disk label on an Epson-compatible printer in elite, compressed and superscript mode. The article explains the printer control codes, how to adapt the program for microdrives, and how to run it; the sort and qsort procedures came from Sinclair QL World. A sample label and the full listing are included.article, orig pub: 11.11.26, updated: 11.11.26
An explanation of how the Sinclair QL's 32K screen memory is organised: where it starts and ends, how to save a screen with SBYTES, and how each 16-bit word encodes 8 pixels in 512x256 four-colour mode or 4 pixels in 256x256 eight-colour mode, including the flash bit. Worked examples show how to build a word and test it with POKE_W, and two SuperBASIC functions, color_l and color_h, return the colour of a screen point like the TS2068/Spectrum POINT function.article, orig pub: 11.11.26, updated: 11.11.26
A review of GAP Software's Front Page Extra, desktop publishing for an expanded QL (384K or more). It keeps two A4 pages in memory, imports Quill _doc files and BASIC listings into columns, offers five fonts (French accents only in the "QL" font), prints on Epson-compatible printers in double or quadruple density, and has a rudimentary line-drawing mode and UDG sets. Verdict: a good product that keeps improving, at £37.95.article, orig pub: 11.11.26, updated: 11.11.26