Kaypro PC - Revision history

FrankRahman: /* Technical Info */

2026-08-03T22:25:23Z

Technical Info

← Older revision		Revision as of 22:25, 3 August 2026
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	"Documentation for the Kaypro PC Expansion Unit is on the way from Kaypro Corp. The bank of five switch settings on the Expansion Unit's Processor Card works the same as on the Kaypro PC. Additionally, the bank of four switches on the Memory Card works the same as SW1 on the PC's Floppy Combo Board. In place of this, simply use the regular Kaypro PC switch settings."<br>		"Documentation for the Kaypro PC Expansion Unit is on the way from Kaypro Corp. The bank of five switch settings on the Expansion Unit's Processor Card works the same as on the Kaypro PC. Additionally, the bank of four switches on the Memory Card works the same as SW1 on the PC's Floppy Combo Board. In place of this, simply use the regular Kaypro PC switch settings."<br>
	(Kugram, Jan-Feb 1987)		(Kugram, Jan-Feb 1987)

			===News===
			"... the KAYPRO EXP will now come standard with Hercules compatible, monochrome graphics capability. The KAYPRO EXP, a fully IBM PC/XT compatible, high value desktop computer system has a retail price of $1195."<br>
			("Kaypro Enhances AT-compatible, Reduces Prices" Press Release, February 1, 1987)

	===Cards===		===Cards===

2026-07-04T10:18:23Z

Card Comparisons

← Older revision		Revision as of 10:18, 4 July 2026
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	[[File:81-486 M.bin]]		[[File:81-486 M.bin]]
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			==Bus board==

			<blockquote>
			We used passive backplanes for decades in our military aircraft instrumentation. There are practical benefits to using a passive [4th page not in repository, will add more]<br>
			(Computer Shopper, August 1989)
			</blockquote>

	==Card Comparisons==		==Card Comparisons==

2026-07-04T09:50:39Z

News

← Older revision		Revision as of 09:50, 4 July 2026
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	==Manuals==		==Manuals==
	[[Kaypro_Manuals#Kaypro_PC\|Kaypro PC Manuals]]		[[Kaypro_Manuals#Kaypro_PC\|Kaypro PC Manuals]]

			==Origins==
			<blockquote>
			Peter Ruber: How did you weather the shakeout of 1984-85?<br>
			Andy Kay: A bit rocky. We dropped about $20-million in sales during the next year. CP/M systems were on the way out. Everybody was switching to IBM-compatible systems. We had to rush one [Kaypro 16] out the door to keep our dealer base happy. That was in 1984. It was a generic MSDOS system, it didn't run all the IBM-compatible software. We stuffed it inside our CP/M case. We had a fully compatible system by 1985 in the same style as IBM's [Kaypro PC]. Our sales continued to plunge. There was a lot of competition. Too much of it for my liking.<br>
			(Computer Shopper, August 1989)
			</blockquote>

	==News==		==News==

2026-06-14T11:45:18Z

Cards

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	\|\|		\|\|
	[[File:KPC 8088 DIP settings.png\|300px]]<br> DIP switch settings<br>		[[File:KPC 8088 DIP settings.png\|300px]]<br> DIP switch settings<br>
	'''Note#1:''' All 4 boards that I have have '''NO''' Co-processor but switch #1 is in the on position. The Technical Manual for the Kaypro PC confirms that this is a typo in ~~this~~ chart<br>		'''Note#1:''' All 4 boards that I have have '''NO''' Co-processor but switch #1 is in the on position. The Technical Manual for the Kaypro PC confirms that this is a typo in the above chart. Switch 1 should be co-processor - OFF, no co-processor - ON<br>
	'''Note#2:''' The last ~~setting~~ listed is 4 disk drives with the settings being duplicated from the 3 disk setting. The technical manual states that it should be switch 4 - OFF, switch 5 - OFF		'''Note#2:''' The last drive listed is 4 disk drives with the settings being duplicated from the 3 disk setting. The technical manual states that it should be switch 4 - OFF, switch 5 - OFF
	(Profiles, August 1987)		(Profiles, August 1987)
	\|-		\|-

2026-06-14T11:40:15Z

Cards

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	\|\|		\|\|
	[[File:KPC 8088 DIP settings.png\|300px]]<br> DIP switch settings<br>		[[File:KPC 8088 DIP settings.png\|300px]]<br> DIP switch settings<br>
	'''Note:''' All 4 boards that I have have '''NO''' Co-processor but switch #1 is in the on position ~~so I believe~~ this is a typo in this chart<br>(Profiles, August 1987)		'''Note#1:''' All 4 boards that I have have '''NO''' Co-processor but switch #1 is in the on position. The Technical Manual for the Kaypro PC confirms that this is a typo in this chart<br>
			'''Note#2:''' The last setting listed is 4 disk drives with the settings being duplicated from the 3 disk setting. The technical manual states that it should be switch 4 - OFF, switch 5 - OFF
			(Profiles, August 1987)
	\|-		\|-
	\| Video Card <br>		\| Video Card <br>

2026-06-12T14:51:03Z

News

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	(The Mail-Journal, Volume 27, Number 37, Milford, Kosciusko County, 26 October 1988)		(The Mail-Journal, Volume 27, Number 37, Milford, Kosciusko County, 26 October 1988)
	</p>		</p>

			==Manuals==
			[[Kaypro_Manuals#Kaypro_PC\|Kaypro PC Manuals]]

	==News==		==News==

2026-06-06T17:12:10Z

Understanding the Kaypro PC Models

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			===Kaypro XL===
	There is one model that I am still working to get more information on it is the Kaypro XL. It might be a 286 based machine.<br>		There is one model that I am still working to get more information on it is the Kaypro XL. It might be a 286 based machine.<br>
	[[File:Kaypro XL badge.jpg]]<br>		[[File:Kaypro XL badge.jpg]]<br>
	"Hello, I am looking for any docs or charts on the correct DIP switch settings to configure my old v20 CPU Kaypro XL computer. I am having some problems finding them and was wondering if anyone has the info, thanks in advace."<br>		<p>"Hello, I am looking for any docs or charts on the correct DIP switch settings to configure my old v20 CPU Kaypro XL computer. I am having some problems finding them and was wondering if anyone has the info, thanks in advace."<br>
	(comp.sys.ibm.pc.hardware.comm, April 1, 1995)		(comp.sys.ibm.pc.hardware.comm, April 1, 1995)</p>

			<p>
			From COMPUTER CONCEPTS, A Kaypro XL Computer Valued At $1,195<br>
			(The Mail-Journal, Volume 27, Number 37, Milford, Kosciusko County, 26 October 1988)
			</p>

	==News==		==News==

2026-06-06T17:07:43Z

Understanding the Kaypro PC Models

← Older revision		Revision as of 17:07, 6 June 2026
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	There is one model that I am still working to get more information on it is the Kaypro XL. It might be a 286 based machine.		There is one model that I am still working to get more information on it is the Kaypro XL. It might be a 286 based machine.<br>
	[[File:Kaypro XL badge.jpg]]		[[File:Kaypro XL badge.jpg]]<br>
			"Hello, I am looking for any docs or charts on the correct DIP switch settings to configure my old v20 CPU Kaypro XL computer. I am having some problems finding them and was wondering if anyone has the info, thanks in advace."<br>
			(comp.sys.ibm.pc.hardware.comm, April 1, 1995)

	==News==		==News==

2026-06-06T16:48:39Z

Understanding the Kaypro PC Models

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	[[File:318211 KPC Starter Kit.jpg\|400px]]		[[File:318211 KPC Starter Kit.jpg\|400px]]
	\|}		\|}

			There is one model that I am still working to get more information on it is the Kaypro XL. It might be a 286 based machine.
			[[File:Kaypro XL badge.jpg]]

	==News==		==News==

2026-03-08T20:24:49Z

Introduction

← Older revision		Revision as of 20:24, 8 March 2026
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	Keys:		Keys:
	[[File:KPC Keys.jpg]]		[[File:KPC Keys.jpg]]
			The keys appear to be unique to each machine. This set will not lock/unlock any of the machines that I have.

	==Understanding the Kaypro PC Models==		==Understanding the Kaypro PC Models==