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.

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.

1982

Sinclair ZX Spectrum

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

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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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.

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Recently Added/Updated

OS-64 is a plug-in cartridge that gives the 2068 a 64 column display operating system and includes full size printer software that supports Aerco, Tasman, A & J, and Oliger Centronics printer interfaces. The cartridge plugs into the cartridge dock on the front of the 2068 and is, in effect, the 2068 ROM with newarticle, orig pub: 10.07.22, updated: 06.08.26
Last month when I started my article for the printer interface, I came up with the idea of using the cartridge port. I had designed the printer interface using the rear edge connector on my ‘proto-board’ and everything worked great on that. As I was writing the article, I changed heading and actually altered thearticle, orig pub: 10.07.22, updated: 06.08.26
This month I will discuss building a printer interface for the 2068. With all the software out on the market for the 2068, its hard to figure out what’s the best route to take in deciding which printer interface to buy for the best variety of good programs. The interface described here will work witharticle, orig pub: 10.07.22, updated: 06.08.26
When writing my first article for SUM, I made an assumption that there were many others like myself that did not know much about the graphic abilities of the 2068. In reviewing the article, I think that it was a good assumption, but assumptions can be dangerous. Many times I have read an article inarticle, orig pub: 10.27.20, updated: 06.08.26
Here is a program that will allow you to input a message and have it print the message as a banner on the out 2040 printer. The letters are generated one at a time by PEEKing at the letter to be generated in the ROM, making it 8 times normal size and turning it onarticle, orig pub: 10.27.20, updated: 06.08.26
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