ZX80/81 - Revision history

Phi2x: /* Clones */

2025-05-13T19:52:09Z

Clones

← Older revision		Revision as of 19:52, 13 May 2025
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	Timex Sinclair was a joint venture established between Sinclair Research and Timex Corporation in an effort to gain an entry into the rapidly growing early-1980s home computer market in North America. They produced 2 modified versions of the ZX81:		Timex Sinclair was a joint venture established between Sinclair Research and Timex Corporation in an effort to gain an entry into the rapidly growing early-1980s home computer market in North America. They produced 2 modified versions of the ZX81:
	*TS 1000, introduced in July 1982 and essentially a modified ZX81 with 2 KB RAM.		*TS 1000, introduced in July 1982 and essentially a modified ZX81 with 2 KB RAM.
	*TS 1500, introduced in August 1983, it was a TS 1000 with 16 ~~KiB~~ RAM and a ZX Spectrum-like case and keyboard.		*TS 1500, introduced in August 1983, it was a TS 1000 with 16 KB RAM and a ZX Spectrum-like case and keyboard.

	<br>		<br>

Phi2x: /* Clones */

2025-05-13T19:51:29Z

Clones

← Older revision		Revision as of 19:51, 13 May 2025
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	== Clones ==		== Clones ==

	Timex Sinclair was a joint venture established between ~~the~~ Sinclair Research and Timex Corporation in an effort to gain an entry into the rapidly growing early-1980s home computer market in North America. They produced 2 modified versions of the ZX81:		Timex Sinclair was a joint venture established between Sinclair Research and Timex Corporation in an effort to gain an entry into the rapidly growing early-1980s home computer market in North America. They produced 2 modified versions of the ZX81:
	*TS 1000, introduced in July 1982 and essentially a modified ZX81 with 2 KB RAM.		*TS 1000, introduced in July 1982 and essentially a modified ZX81 with 2 KB RAM.
	*TS 1500, introduced in August 1983, it was a TS 1000 with 16 KiB RAM and a ZX Spectrum-like case and keyboard.		*TS 1500, introduced in August 1983, it was a TS 1000 with 16 KiB RAM and a ZX Spectrum-like case and keyboard.

Phi2x at 19:50, 13 May 2025

2025-05-13T19:50:04Z

← Older revision		Revision as of 19:50, 13 May 2025
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	A substantial disadvantage of the design of these machines is that because the refresh cycle is commandeered for other purposes, they're built around an assumption of static RAM. As a result, each shipped with only 1kb at launch and expansions beyond 16kb were rare.		A substantial disadvantage of the design of these machines is that because the refresh cycle is commandeered for other purposes, they're built around an assumption of static RAM. As a result, each shipped with only 1kb at launch and expansions beyond 16kb were rare.

	PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that ~~fouled~~ Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].		PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that fooled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].

	<br>		<br>

Phi2x at 19:48, 13 May 2025

2025-05-13T19:48:15Z

← Older revision		Revision as of 19:48, 13 May 2025
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	PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that fouled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].		PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that fouled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].

			<br>

	== Clones ==		== Clones ==
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	*TS 1500, introduced in August 1983, it was a TS 1000 with 16 KiB RAM and a ZX Spectrum-like case and keyboard.		*TS 1500, introduced in August 1983, it was a TS 1000 with 16 KiB RAM and a ZX Spectrum-like case and keyboard.

			<br>

	== Links ==		== Links ==
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	*[https://youtu.be/qDorGWU1k3A Sinclair ZX81 - revolutionary or scam ?] [https://youtu.be/6eTGX_sEqPM ZXPAND+ ZX81's lethal weapon] [https://youtu.be/kTw8uo-53lc TOP 20 games for the Sinclair ZX81] by [[Olipix Retrotech]]		*[https://youtu.be/qDorGWU1k3A Sinclair ZX81 - revolutionary or scam ?] [https://youtu.be/6eTGX_sEqPM ZXPAND+ ZX81's lethal weapon] [https://youtu.be/kTw8uo-53lc TOP 20 games for the Sinclair ZX81] by [[Olipix Retrotech]]
	*[https://youtu.be/Liqd7ZoBVEI ZX80 - Histoire & Jeux] [https://youtu.be/GjHgIpHPgq4 Le mystère de l'ordinateur en bois] by [[Olipix]]		*[https://youtu.be/Liqd7ZoBVEI ZX80 - Histoire & Jeux] [https://youtu.be/GjHgIpHPgq4 Le mystère de l'ordinateur en bois] by [[Olipix]]

			<br>

	[[Category:Non CPC Computers]]		[[Category:Non CPC Computers]]

Phi2x at 19:47, 13 May 2025

2025-05-13T19:47:22Z

← Older revision		Revision as of 19:47, 13 May 2025
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	PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that fouled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].		PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that fouled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].

			== Clones ==

			Timex Sinclair was a joint venture established between the Sinclair Research and Timex Corporation in an effort to gain an entry into the rapidly growing early-1980s home computer market in North America. They produced 2 modified versions of the ZX81:
			*TS 1000, introduced in July 1982 and essentially a modified ZX81 with 2 KB RAM.
			*TS 1500, introduced in August 1983, it was a TS 1000 with 16 KiB RAM and a ZX Spectrum-like case and keyboard.


	== Links ==		== Links ==

Phi2x at 19:44, 13 May 2025

2025-05-13T19:44:04Z

← Older revision		Revision as of 19:44, 13 May 2025
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	[[File:Sinclair ZX80.jpg\|thumb\|right\|Sinclair ZX80]]		[[File:Sinclair ZX80.jpg\|thumb\|right\|Sinclair ZX80]]
	[[File:Sinclair-ZX81.png\|thumb\|right\|Sinclair ZX81]]		[[File:Sinclair-ZX81.png\|thumb\|right\|Sinclair ZX81]]
			[[File:Timex Sinclair 1500.png\|thumb\|right\|Timex Sinclair 1500]]

	The Sinclair ZX80 and ZX81, introduced in 1980 and 1981, are early budget microcomputers notable for their price, fleeting popularity and diminutive quantity of components.		The Sinclair ZX80 and ZX81, introduced in 1980 and 1981, are early budget microcomputers notable for their price, fleeting popularity and diminutive quantity of components.

Phi2x at 19:39, 13 May 2025

2025-05-13T19:39:29Z

← Older revision		Revision as of 19:39, 13 May 2025
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			[[File:Sinclair ZX80.jpg\|thumb\|right\|Sinclair ZX80]]
			[[File:Sinclair-ZX81.png\|thumb\|right\|Sinclair ZX81]]

	The Sinclair ZX80 and ZX81, introduced in 1980 and 1981, are early budget microcomputers notable for their price, fleeting popularity and diminutive quantity of components.		The Sinclair ZX80 and ZX81, introduced in 1980 and 1981, are early budget microcomputers notable for their price, fleeting popularity and diminutive quantity of components.

Phi2x: /* Links */

2025-05-09T16:38:11Z

Links

← Older revision		Revision as of 16:38, 9 May 2025
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	*[https://youtu.be/1Jr7Q1yJOUM Documentary - The Sinclair ZX80, ZX81, and Timex Sinclair 1000] by [[The 8-Bit Guy]]		*[https://youtu.be/1Jr7Q1yJOUM Documentary - The Sinclair ZX80, ZX81, and Timex Sinclair 1000] by [[The 8-Bit Guy]]
	*[https://youtu.be/spxAQkTzvDQ Sinclair ZX81 (Timex 1000) Grandaddy of Computers] by [[Nostalgia Nerd]]		*[https://youtu.be/spxAQkTzvDQ Sinclair ZX81 (Timex 1000) Grandaddy of Computers] by [[Nostalgia Nerd]]
	*[https://youtu.be/qDorGWU1k3A Sinclair ZX81 - revolutionary or scam ?] [https://youtu.be/kTw8uo-53lc TOP 20 games for the Sinclair ZX81] by [[Olipix Retrotech]]		*[https://youtu.be/qDorGWU1k3A Sinclair ZX81 - revolutionary or scam ?] [https://youtu.be/6eTGX_sEqPM ZXPAND+ ZX81's lethal weapon] [https://youtu.be/kTw8uo-53lc TOP 20 games for the Sinclair ZX81] by [[Olipix Retrotech]]
	*[https://youtu.be/Liqd7ZoBVEI ZX80 - Histoire & Jeux] [https://youtu.be/GjHgIpHPgq4 Le mystère de l'ordinateur en bois] by [[Olipix]]		*[https://youtu.be/Liqd7ZoBVEI ZX80 - Histoire & Jeux] [https://youtu.be/GjHgIpHPgq4 Le mystère de l'ordinateur en bois] by [[Olipix]]

	[[Category:Non CPC Computers]]		[[Category:Non CPC Computers]]

Phi2x: /* Links */

2025-05-03T20:14:38Z

Links

← Older revision		Revision as of 20:14, 3 May 2025
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	*[https://youtu.be/1Jr7Q1yJOUM Documentary - The Sinclair ZX80, ZX81, and Timex Sinclair 1000] by [[The 8-Bit Guy]]		*[https://youtu.be/1Jr7Q1yJOUM Documentary - The Sinclair ZX80, ZX81, and Timex Sinclair 1000] by [[The 8-Bit Guy]]
	*[https://youtu.be/spxAQkTzvDQ Sinclair ZX81 (Timex 1000) Grandaddy of Computers] by [[Nostalgia Nerd]]		*[https://youtu.be/spxAQkTzvDQ Sinclair ZX81 (Timex 1000) Grandaddy of Computers] by [[Nostalgia Nerd]]
	*[https://youtu.be/~~Liqd7ZoBVEI ZX80~~ - ~~Histoire & Jeux~~] [https://youtu.be/~~qeKSV1GT6Nw~~ ZX81 ~~- Machine révolutionnaire ou grosse bouse ?~~] [https://youtu.be/~~vOT6kFy1uyY Le TOP 20 des meilleurs jeux pour Sinclair ZX81~~] [https://youtu.be/GjHgIpHPgq4 Le mystère de l'ordinateur en bois] by [[Olipix]]		*[https://youtu.be/qDorGWU1k3A Sinclair ZX81 - revolutionary or scam ?] [https://youtu.be/kTw8uo-53lc TOP 20 games for the Sinclair ZX81] by [[Olipix Retrotech]]
			*[https://youtu.be/Liqd7ZoBVEI ZX80 - Histoire & Jeux] [https://youtu.be/GjHgIpHPgq4 Le mystère de l'ordinateur en bois] by [[Olipix]]

	[[Category:Non CPC Computers]]		[[Category:Non CPC Computers]]

Phi2x at 04:16, 3 May 2025

2025-05-03T04:16:50Z

← Older revision		Revision as of 04:16, 3 May 2025
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	A substantial disadvantage of the design of these machines is that because the refresh cycle is commandeered for other purposes, they're built around an assumption of static RAM. As a result, each shipped with only 1kb at launch and expansions beyond 16kb were rare.		A substantial disadvantage of the design of these machines is that because the refresh cycle is commandeered for other purposes, they're built around an assumption of static RAM. As a result, each shipped with only 1kb at launch and expansions beyond 16kb were rare.

	~~There was no~~ PAL/SECAM compatibility issue on these machines as they could only output black-and-white video signals anyway. Maybe that fouled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].		PAL/SECAM compatibility was not an issue on these machines as they could only output black-and-white video signals anyway. Maybe that fouled Lord Sinclair into neglecting SECAM on its following machine, the [[ZX Spectrum]].

	== Links ==		== Links ==