Questions tagged [timex-sinclair]

For questions about the American versions of Sinclair computers made by Timex.

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How many units of the ZX81 RAM pack were sold?

The Sinclair ZX81 was an extremely popular low-cost home computer, on strength of price, being a computer for less than 100 pounds. It sold over 1.5 million units, according to
rwallace's user avatar
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14 votes
1 answer

How are the extra BASIC keywords of the Timex Sinclair 2068 that the ZX Spectrum didn't have encoded?

I've read that the BASIC of the Timex Sinclair 2068 is a superset of the BASIC of the Sinclair ZX Spectrum with a few extra keywords. The extra keywords are: DELETE delete BASIC program lines, FREE ...
hippietrail's user avatar
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6 votes
4 answers

Fire button of Timex TC/TS 2068 Joystick

These pages wos and suggest the fire button of the Timex TC/TS 2068 joystick is read at bit 4. Input: bit D0: up (0=active) bit D1: down bit D2: left bit D3: ...
Rui F Ribeiro's user avatar
3 votes
1 answer

How to change graphics modes from BASIC on a Timex/Sinclair 2068?

I've got the Timex/Sinclair 2068 emulation working under MAME and wanted to play with its extra graphics modes the original version of the Sinclair ZX Spectrum didn't have. But despite an hour of ...
hippietrail's user avatar
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8 votes
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Are there any homebrew games (or demos) for the Timex/Sinclair 2068?

I know there has long been a thriving homebrew scene for games and demos for the original Sinclair Spectrum range and also for the Russian and Eastern Bloc Spectrum clones. But I expected some old ...
hippietrail's user avatar
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9 votes
1 answer

Did the Timex Sinclair 2068 and the Sinclair ZX Interface 2 use totally different hardware and software techniques?

Sinclair released an add-on for the Spectrum called the ZX Interface 2 that provided joystick ports and a cartridge slot. It wasn't successful and only a few cartridges were ever produced. In the US, ...
hippietrail's user avatar
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6 votes
2 answers

Timex 2048 RAM contention ULA/video output

I used to own a Timex TC-2048 ZX Spectrum 48K compatible clone. I programmed it in assembly extensively, both for fun and when learning, and also when testing things for writing my own ZX Spectrum ...
Rui F Ribeiro's user avatar
13 votes
3 answers

What format is the (Timex) Sinclair ZX Spectrum SCREEN$/.SCR file

What format is the (Timex) Sinclair ZX Spectrum SCREEN$/.SCR file and how is the fore/background and attribute data encoded within this format?
John Parker's user avatar