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.

Explore the T/S1000
1983

Timex/Sinclair 1500

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

Explore the T/S1500
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.

Explore the T/S2068

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.

Explore the ZX80
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.

Explore the ZX81
1982

Sinclair ZX Spectrum

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

Explore the ZX Spectrum
1984

Sinclair QL

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

Explore the QL
1987

Cambridge Z88

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

Explore the Z88

Join Us Online

We have a YouTube channel, active email list and more! We meet via Zoom on the first Monday and third Sunday of each month to chat about our favorite computers, projects and more. Each meeting is recorded and posted to YouTube. You can watch some of our most recent meetings below.

Learn how to join us online
Uploads from Timex Sinclair Fans

Recent Blog Posts

See All Blog Posts

Recently Added/Updated

Interview with Ian Logan, author of several Sinclair ROM disassembly books.article, orig pub: 09.26.21, updated: 04.10.26
Here’s another easy-to-use command utility which quickly PRINTs a string of text at any size and at any pixel coordinate location. You will be able to use this utility in your own programs. The syntax follows: PRINT USR large;AT X,Y;W,H;”txt” The text at the end of the line can either by within quotes oruse a…article, orig pub: 10.07.22, updated: 04.07.26
This months utility will COMPRESS a typical SCREEN$ file up to as much as 1/2 its usual size. In addition, a header is automatically included in the SAVED file which will resolve the compressed SCREEN$ back to its full size onto the screen by simply using RANDOMIZE USR (address).article, orig pub: 10.07.22, updated: 04.07.26
article, orig pub: 10.07.22, updated: 04.07.26
If you’ve examined some of your programs for any of the Sinclair computers containing machine code, you’ve probably seen machine code routines called in a variety of ways. The most common calls are: where “n” represents the address where the machine code is located. How do you know which way to call a USR routine?…article, orig pub: 10.07.22, updated: 04.07.26
Read more
Scroll to Top