Model 100 RAM - Revision history

Bkw: /* Past 3rd party */

2023-10-17T04:52:15Z

Past 3rd party

← Older revision		Revision as of 04:52, 17 October 2023
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	\| Purple Computing 1985\|\| [[File:Purple Computing 1985 RAM Module.jpg\|thumb]]		\| Purple Computing 1985\|\| [[File:Purple Computing 1985 RAM Module.jpg\|thumb]]
	\|-		\|-
	\| C.I. 1984\|\| [[File:C.I. 1984 RAM Module.jpg\|thumb]]		\| C.I. 1984 (possibly Cryptronics?) \|\| [[File:C.I. 1984 RAM Module.jpg\|thumb]]
	\|-		\|-
	\|}		\|}

Bkw: /* Buy */

2023-10-10T02:49:53Z

Buy

← Older revision		Revision as of 02:49, 10 October 2023
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	==Buy==		==Buy==
	Some new modules you may be able to buy.		Some new modules you may be able to buy. (stock comes and goes, people making and offering something come and go)

	[https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042 Francesco Messineo]<br>		[https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042 Francesco Messineo]<br>

Bkw: /* Buy */

2023-10-10T02:48:52Z

Buy

← Older revision		Revision as of 02:48, 10 October 2023
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	==Buy==		==Buy==
	Some new modules you may be able to buy.		Some new modules you may be able to buy.

	[https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042 Francesco Messineo]<br>		[https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042 Francesco Messineo]<br>
	[https://www.ebay.com/itm/402652485830 GGLABS M10MEM]<br>		[https://www.ebay.com/itm/402652485830 GGLABS M10MEM]<br>

Bkw: /* Build */

2023-10-10T02:47:22Z

Build

← Older revision		Revision as of 02:47, 10 October 2023
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	==Build==		==Build==
	You can always build your own~~. This is a new design using all parts you can still buy new today~~.		You can always build your own.

	https://github.com/bkw777/Model_T_RAM<br>		This is a new design using all parts you can still buy new today.<br>
			https://github.com/bkw777/Model_T_RAM
			{\|
			\|-
			\| bkw777 Model_T_RAM \|\| [[File:bkw777_model_t_ram.jpg\|thumb]]
			\|-
			\|}

			Here are some other designs<br>
	[https://drive.google.com/open?id=1U_T8bdf7bJZ8vM9IxSQHVU1slsC0df1o Francesco Messineo]<br>		[https://drive.google.com/open?id=1U_T8bdf7bJZ8vM9IxSQHVU1slsC0df1o Francesco Messineo]<br>
	[https://oshpark.com/shared_projects/wn2DEsJc Stardust SMT]<br>		[https://oshpark.com/shared_projects/wn2DEsJc Stardust SMT]<br>

Bkw at 02:42, 10 October 2023

2023-10-10T02:42:09Z

← Older revision		Revision as of 02:42, 10 October 2023
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	Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.		Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.

	[[File:Radio Shack 26-3816 8k ram module.jpg~~\|left~~\|thumb]]		{\|
			\|-
			\| Radio Shack 26-3816 \|\| [[File:Radio Shack 26-3816 8k ram module.jpg\|thumb]]
			\|-
			\|}


	=Replacement=		=Replacement=

Bkw: /* Original */

2023-10-10T02:35:46Z

Original

← Older revision		Revision as of 02:35, 10 October 2023
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	Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.		Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.

	[[File:Radio Shack 26-3816 8k ram module.jpg\|thumb]]		[[File:Radio Shack 26-3816 8k ram module.jpg\|left\|thumb]]

	=Replacement=		=Replacement=

Bkw: /* Original */

2023-10-10T02:28:40Z

Original

← Older revision		Revision as of 02:28, 10 October 2023
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	=Original=		=Original=
	The original ram came in the form of 4 2Kx8 on a ceramic carrier module to make a single 8k chip, and up to 4 modules total may be installed.		The original ram came in the form of 4 2Kx8 on a ceramic carrier module to make a single 8k chip, and up to 4 modules total may be installed for a total of 32k.

	Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.		Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.

Bkw at 02:27, 10 October 2023

2023-10-10T02:27:34Z

← Older revision		Revision as of 02:27, 10 October 2023
Line 1:		Line 1:
			=Original=
			The original ram came in the form of 4 2Kx8 on a ceramic carrier module to make a single 8k chip, and up to 4 modules total may be installed.

			Each module still acted like 4 seperate 2k chips. The 2k chips are combined physically but not logically. There are 4 seperate chip-select lines for each module socket, and when ram is accessed, only one of the individual 2k chips is selected by it's own dedicated chip-select line.

			[[File:Radio Shack 26-3816 8k ram module.jpg\|thumb]]

			=Replacement=

	==Buy==		==Buy==
			Some new modules you may be able to buy.
	[https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042 Francesco Messineo]<br>		[https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042 Francesco Messineo]<br>
	[https://www.ebay.com/itm/402652485830 GGLABS M10MEM]<br>		[https://www.ebay.com/itm/402652485830 GGLABS M10MEM]<br>

	==Build==		==Build==
			You can always build your own. This is a new design using all parts you can still buy new today.

	https://github.com/bkw777/Model_T_RAM<br>		https://github.com/bkw777/Model_T_RAM<br>
	[https://drive.google.com/open?id=1U_T8bdf7bJZ8vM9IxSQHVU1slsC0df1o Francesco Messineo]<br>		[https://drive.google.com/open?id=1U_T8bdf7bJZ8vM9IxSQHVU1slsC0df1o Francesco Messineo]<br>

Bkw: /* Past */

2023-10-10T02:10:20Z

Past

← Older revision		Revision as of 02:10, 10 October 2023
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	BASIC software tester https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FRAMTST		BASIC software tester https://archive.org/download/M100SIG/M100SIG.zip/Lib-07-UTILITIES%2FRAMTST

	==Past==		==Past 3rd party==
	There have been many 3rd party ram modules over the years. Here are just a few examples.		There have been many 3rd party ram modules over the years. Here are just a few examples.

Bkw: /* Other */

2023-10-10T02:06:00Z

Other

← Older revision		Revision as of 02:06, 10 October 2023
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	==Other==		==Other==
	There are also ram expansion accessories that connect to the system bus and either add extra banks of 32k to the internal ram, or replace the internal ram. These aren't normal ram modules that plug into the normal ram sockets. They plug in to the system bus ~~cnnector~~ and provide the entire 32K address space at once from there, as if all ram sockets were filled.		There are also ram expansion accessories that connect to the system bus and either add extra banks of 32k to the internal ram, or replace the internal ram. These aren't normal ram modules that plug into the normal ram sockets. They plug in to the system bus connector and provide the entire 32K address space at once from there, as if all ram sockets were filled.
	:[[QUAD]]		:[[QUAD]]
			:[https://www.github.com/bkw777/reQUAD reQUAD]
	:[[PGDesigns]]		:[[PGDesigns]]
	:[[PCSG]]		:[[PCSG]]
	:[https://bitchin100.com/wiki/index.php?title=REXCPM REXCPM]		:[https://bitchin100.com/wiki/index.php?title=REXCPM REXCPM]