REX - Revision history

Bkw at 18:22, 23 October 2025

2025-10-23T18:22:54Z

← Older revision		Revision as of 18:22, 23 October 2025
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	:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.		:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.

	[https://www.youtube.com/watch?v=Oa6QPHD6qzw TechTangents vdeo on how to install REXCPM]		:[https://www.youtube.com/watch?v=Oa6QPHD6qzw TechTangents vdeo on how to install REXCPM]

	[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]		[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]

Bkw at 18:22, 23 October 2025

2025-10-23T18:22:30Z

← Older revision		Revision as of 18:22, 23 October 2025
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	:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.		:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.

			[https://www.youtube.com/watch?v=Oa6QPHD6qzw TechTangents vdeo on how to install REXCPM]

	[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]		[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]

Bkw at 22:52, 4 January 2024

2024-01-04T22:52:16Z

← Older revision		Revision as of 22:52, 4 January 2024
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	:You can still use a REXCPM to recover from a hard reset, as long as the computers memory battery hasn't died and as long as the REXCPM hasn't been removed from the computer for more than a few minutes. But if the computer sits on the shelf for more than a few weeks or if you remove the REXCPM from the machine for more than a few minutes, you will need a PC and serial connection and go through the entire setup process again.		:You can still use a REXCPM to recover from a hard reset, as long as the computers memory battery hasn't died and as long as the REXCPM hasn't been removed from the computer for more than a few minutes. But if the computer sits on the shelf for more than a few weeks or if you remove the REXCPM from the machine for more than a few minutes, you will need a PC and serial connection and go through the entire setup process again.

	:The contrast is, the old REX and new REX# are flash devices which never die. They are actually useful for storing rom images and ram backup images, and you can restore from them with nothing else needed even after the computer has fully died.		:The contrast is, the old REX and new REX# are flash devices which never die. They are actually useful for storing rom images and ram backup images, and you can restore from them with nothing else needed even after the computer has fully died. For instance you don't have to bootstrap over serial to get TS-DOS installed, you have it in rom the same as if you had an original TS-DOS option rom.

	:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.		:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.

Bkw at 22:50, 4 January 2024

2024-01-04T22:50:01Z

← Older revision		Revision as of 22:50, 4 January 2024
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	REXCPM is a very different beast. The headline feature of REXCPM is CP/M. It provides a way to run CP/M on the 100.<br>		REXCPM is a very different beast. The headline feature of REXCPM is CP/M. It provides a way to run CP/M on the 100.<br>

	:It also provides all the ~~same basic~~ REX functions ~~(option rom library~~, ~~ram image backup & restore)~~ at least outwardly. But the basic REX functionality isn't really the same because it is a purely volatile RAM device. When it loses power, it loses it's virtual "firmware", rom images, and ram backup images.		:It also provides all of the REX# functions, at least outwardly. But the basic REX/REX# functionality isn't really the same because it is a purely volatile RAM device. When it loses power, it loses it's virtual "firmware", rom images, and ram backup images.

	:You can still use a REXCPM to recover from a hard reset, as long as the computers memory battery ~~never~~ died and as long as ~~you never removed~~ the REXCPM from the computer for more than a few minutes. But if the computer sits on the shelf for more than a few weeks or if you remove the REXCPM from the machine for more than a few minutes, you will need a PC and serial connection and go through the entire setup process again.		:You can still use a REXCPM to recover from a hard reset, as long as the computers memory battery hasn't died and as long as the REXCPM hasn't been removed from the computer for more than a few minutes. But if the computer sits on the shelf for more than a few weeks or if you remove the REXCPM from the machine for more than a few minutes, you will need a PC and serial connection and go through the entire setup process again.

	:The contrast is, the old REX and new REX# are flash devices which never die. They are actually useful for storing rom images and ram backup images, and you can restore from them with nothing else needed even after the computer has fully died.		:The contrast is, the old REX and new REX# are flash devices which never die. They are actually useful for storing rom images and ram backup images, and you can restore from them with nothing else needed even after the computer has fully died.

Bkw at 22:45, 4 January 2024

2024-01-04T22:45:39Z

← Older revision		Revision as of 22:45, 4 January 2024
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	The differences are:		The differences are:

	:REX# is newer and currently sold and supported by the ~~designer Steve Adolph~~. The firmware and software are newer and receiving more updates.		:REX# is newer and currently sold and supported by the creator. The firmware and software are newer and receiving more updates.

	:REX Classic provides one feature that REX# does not, which is the [http://bitchin100.com/wiki/index.php?title=Main_ROM_Management_Feature Main ROM Management Feature]. It allows you to boot from a main rom image on the REX instead of the internal main rom, and manage & modify the main rom image purly from software once the hardware install is done one time. See also [[FlexROM_100]] which adds more hook-up convenience and a 3rd fall-back boot option still without re-opening the case even if you bork both main rom images in the REX.		:REX Classic provides one feature that REX# does not, which is the [http://bitchin100.com/wiki/index.php?title=Main_ROM_Management_Feature Main ROM Management Feature]. It allows you to boot from a main rom image on the REX instead of the internal main rom, and manage & modify the main rom image purly from software once the hardware install is done one time. See also [[FlexROM_100]] which adds more hook-up convenience and a 3rd fall-back boot option still without re-opening the case even if you bork both main rom images in the REX.

Bkw at 22:43, 4 January 2024

2024-01-04T22:43:58Z

← Older revision		Revision as of 22:43, 4 January 2024
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	REX is an on-board virtual option rom library and ram backup device designed by Steven Adolph.		REX is an on-board virtual option rom library and ram backup device designed by Steven Adolph.

	There are a few different types of REX now, REX Classic, REX#, and REXCPM.		There are a few different types of REX now: [http://bitchin100.com/wiki/index.php?title=REXclassic REX Classic], [http://bitchin100.com/wiki/index.php?title=REXsharp REX#], and [http://bitchin100.com/wiki/index.php?title=REXCPM REXCPM].

	REX# and REX Classic provide mostly the same functionality.		REX# and REX Classic provide mostly the same functionality.

Bkw at 22:42, 4 January 2024

2024-01-04T22:42:09Z

← Older revision		Revision as of 22:42, 4 January 2024
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	:The contrast is, the old REX and new REX# are flash devices which never die. They are actually useful for storing rom images and ram backup images, and you can restore from them with nothing else needed even after the computer has fully died.		:The contrast is, the old REX and new REX# are flash devices which never die. They are actually useful for storing rom images and ram backup images, and you can restore from them with nothing else needed even after the computer has fully died.

			:There is a [https://github.com/bkw777/REXCPM_UPS battery backup for REXCPM], but Steve didn't make it and doesn't sell them. You have to buy the parts and build it yourself. But it adds a battery to the REXCPM and allows the REXCPM to be removed from the computer and still retain it's data for at least a few years.

	[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]		[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]

Bkw at 22:33, 4 January 2024

2024-01-04T22:33:50Z

@@ Line 1: / Line 1: @@
 REX is an on-board virtual option rom library and ram backup device designed by Steven Adolph.
-[http://bitchin100.com/wiki/index.php?title=REXclassic REX Classic Documentation]
+There are a few different types of REX now, REX Classic, REX#, and REXCPM.
-[[Building a REX|Build your own REX]]
+REX# and REX Classic provide mostly the same functionality.
 [[ModelT_roms|roms]]

Bkw at 20:34, 4 January 2024

2024-01-04T20:34:56Z

← Older revision		Revision as of 20:34, 4 January 2024
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	REX is an on-board virtual option rom library and ram backup device designed by Steven Adolph.		REX is an on-board virtual option rom library and ram backup device designed by Steven Adolph.

	[http://bitchin100.com/wiki/index.php?title=REX ~~REX~~ Documentation]		[http://bitchin100.com/wiki/index.php?title=REXclassic REX Classic Documentation]

	[[Building a REX\|Build your own REX]]		[[Building a REX\|Build your own REX]]

	[[ModelT_roms\|roms]]		[[ModelT_roms\|roms]]

Bkw at 21:21, 8 November 2020

2020-11-08T21:21:23Z

← Older revision		Revision as of 21:21, 8 November 2020
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	REX is an on-board virtual option rom library and ram backup device ~~invented and~~ designed by Steven Adolph.		REX is an on-board virtual option rom library and ram backup device designed by Steven Adolph.

	[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]		[http://bitchin100.com/wiki/index.php?title=REX REX Documentation]