Kaypro 286 - Revision history

FrankRahman: /* Articles */

2026-10-23T01:39:45Z

Articles

← Older revision		Revision as of 01:39, 23 October 2026
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	PC Card that, when exchanged for the 8088 card, enables the Kaypro PC to operate IBM PC/AT software. The "brain" of the 286 PC Card is an Intel 80286 CPU that utilizes the Kaypro PC's 16-bit potential. A trade-in allowance of $266 on your old 8088 card reduces the retail price of the 286 PC Card to $799, or $1065 without the trade-in."<br>		PC Card that, when exchanged for the 8088 card, enables the Kaypro PC to operate IBM PC/AT software. The "brain" of the 286 PC Card is an Intel 80286 CPU that utilizes the Kaypro PC's 16-bit potential. A trade-in allowance of $266 on your old 8088 card reduces the retail price of the 286 PC Card to $799, or $1065 without the trade-in."<br>
	(Kugram, Jul-Aug 1986)		(Kugram, Jul-Aug 1986)

			<blockquote>
			He [Bill McDonald of Kaypro] really likes the Priam 42 meg drives they're putting in the 286 and 386 systems. They cost more than other drives, but they come formatted and they come with a program like SpeedStor which lets you create 40 meg
			partitions.

			Kaypro is also shipping NEC hard drives, and the failure rate is running under .1 %. Panasonic and Toshiba floppy drives have been 99.1 % good.<br>
			(Micro Cornucopia, April 1987)
			</blockquote>

	"Kaypro also introduced a 20-MHz version of its Series 286. The EGA system comes standard with 1 megabyte of		"Kaypro also introduced a 20-MHz version of its Series 286. The EGA system comes standard with 1 megabyte of

2026-10-15T16:34:04Z

Upgrading a Kaypro PC to a Kaypro 286

← Older revision		Revision as of 16:34, 15 October 2026
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	===Required Bus Board===		===Required Bus Board===
	Notice the three Bus Boards below. The upper left one has 4 slots populated for 16 bit cards and 5 slots for 8 bit cards. The lower left one is only setup for 9 slots of 8 bits each. The right one has 2 slots for 16 bit cards and 7 slots for 8 bit cards.		Notice the three Bus Boards below (various 81-914s). The upper left one has 4 slots populated for 16 bit cards and 5 slots for 8 bit cards. The lower left one is only setup for 9 slots of 8 bits each. The right one has 2 slots for 16 bit cards and 7 slots for 8 bit cards.

	In order to take advantage of the 286's architecture the CPU card and other 16 bit cards need to plugged into the 16 bit slots.		In order to take advantage of the 286's architecture the CPU card and other 16 bit cards need to plugged into the 16 bit slots.

2026-10-02T18:03:24Z

Example Machine

← Older revision		Revision as of 18:03, 2 October 2026
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	Nick R. got the following machine. The serial number appears to be missing from it.		Nick R. got the following machine. The serial number appears to be missing from it.

			[[File:K 286 front nick r.jpg\|400px]]

			[[File:K 286 back nickr.jpg\|400px]]

			[[File:K 286 label nick r.jpg]]<br>
			The model number is different from the other 286 machines. (81-05?)

			{\|
			\|-
			\|
			[[File:K 286 CPU card nick r.jpg\|400px]]<br>CPU card
			\|\|
			[[File:K 286 HD-FD card nick r.jpg\|400px]]<br>HD/FD card
			\|-
			\|
			[[File:K 286 IO card nick r.jpg\|400px]]<br>IO card
			\|\|
			[[File:K 286 video card nick.jpg\|400px]]<br>Video card<br>I am not certain if this card came with the machine.
			\|}

	==Technical Notes==		==Technical Notes==

2026-10-02T17:55:16Z

Articles

← Older revision		Revision as of 17:55, 2 October 2026
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	Chris Singleton has contributed significantly to this page.		Chris Singleton has contributed significantly to this page.

			==Example Machine==

			Nick R. got the following machine. The serial number appears to be missing from it.

	==Technical Notes==		==Technical Notes==

2026-09-18T00:20:44Z

CPU boards

← Older revision		Revision as of 00:20, 18 September 2026
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	\|-		\|-
	\|		\|
	[[File:286 cpu board.jpg\|600px]]		[[File:286 cpu board.jpg\|600px]]<br>
			81-1342 Rev. E
	\|-		\|-
	\|		\|
	[[File:286 cpu board w SIMMs.jpg\|600px]]		[[File:286 cpu board w SIMMs.jpg\|600px]]<br>
			81-1590 Rev. E
	\|}		\|}
	Thanks go to Chris Singleton for the photos.
			Thanks go to Chris Singleton for the above photos.

	[[File:Ebay photo of 286 board.jpg\|200px]]<br>		[[File:Ebay photo of 286 board.jpg\|200px]]<br>

2026-09-18T00:00:42Z

CPU boards

← Older revision		Revision as of 00:00, 18 September 2026
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	\|}		\|}
	Thanks go to Chris Singleton for the photos.		Thanks go to Chris Singleton for the photos.

			[[File:Ebay photo of 286 board.jpg\|200px]]<br>
			An eBay photo of a 286 board.

	==Manual==		==Manual==

2026-09-17T23:55:46Z

Exterior

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	\|-		\|-
	\| [[File:286 fcc label.jpg\|400px]]		\| [[File:286 fcc label.jpg\|400px]]
			\|}

			{\|
			\|-
			\|
			[[File:286 case from HomeComputerMuseum.jpg\|600px]]<br>
			A machine at the Computer History Museum.
	\|}		\|}

2026-09-16T13:47:47Z

CPU boards

← Older revision		Revision as of 13:47, 16 September 2026
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	[[File:286 cpu board w SIMMs.jpg\|600px]]		[[File:286 cpu board w SIMMs.jpg\|600px]]
	\|}		\|}
			Thanks go to Chris Singleton for the photos.

	==Manual==		==Manual==

2026-09-16T13:45:50Z

CPU board

2026-09-01T17:18:46Z

System Profile

← Older revision		Revision as of 17:18, 1 September 2026
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	"The 80286 operates at a clock speed of 12 megahertz. A switch at one end of the board lets you change to 6 Mhz operation for software that needs a slower clock speed."<br>(Profiles, August 1988)		"The 80286 operates at a clock speed of 12 megahertz. A switch at one end of the board lets you change to 6 Mhz operation for software that needs a slower clock speed."<br>(Profiles, August 1988)

			===The never released future replacement cards===

			"While the Kaypro 286 upgrade kit is impressive, there are even more powerful products in development. A 16 Mhz 80286 board capable of holding eight megabytes of RAM will debut soon. In development, but still many months, away is a replacement processor board based on the 80386 microprocessor."<br>
			(Profiles, August 1988)

	==Exterior==		==Exterior==