PDP-11/34A - Revision history

Jnc: /* External links */ +pdp11 processor handbook

2024-02-29T21:41:36Z

‎External links: +pdp11 processor handbook

Jnc: /* External links */ +Maintenance Card

2022-02-22T13:08:04Z

‎External links: +Maintenance Card

Jnc: Mdntion backplane, +ext link

2021-04-19T11:20:06Z

Mdntion backplane, +ext link

Jnc: +cat

2018-12-19T23:37:25Z

+cat

Jnc: Proper cat

2018-10-20T16:07:41Z

Proper cat

Jnc: DEC formal name for KK11-A

2017-12-06T16:19:08Z

DEC formal name for KK11-A

Jnc: Somewhat stubby, but has all the basic info

2017-10-31T01:38:45Z

Somewhat stubby, but has all the basic info

New page

The '''PDP-11/34A''' is the version of the [[PDP-11/34]] with the upgraded [[KD11-EA CPU|KD11-EA]] [[Central Processing Unit|CPU]] needed to supported the optional [[FP11-A Floating-Point Processor|FP11-A]] [[FP11 floating point|floating point]] unit and/or the [[KK11-A cache|KK11-A]] [[cache]].

A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor|hex]] boards of the [[KD11-E CPU|KD11-E]] CPU.

{{stub}}

{{PDP-11}}

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 * [http://www.vaxhaven.com/images/8/84/EK-11034-MC-003.pdf PDP-11/04/34/34A Maintenance Card] (EK-11034-MC-003)
 * [https://www.pdp-11.nl/pdp11-34a/pdp11-34general.html PDP-11/34A Processor Overview]
 {{PDP-11}}
 [[Category: UNIBUS PDP-11s]]

← Older revision		Revision as of 13:08, 22 February 2022
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	==External links==		==External links==

		+	* [http://www.vaxhaven.com/images/8/84/EK-11034-MC-003.pdf PDP-11/04/34/34A Maintenance Card] (EK-11034-MC-003)
	* [https://www.pdp-11.nl/pdp11-34a/pdp11-34general.html PDP-11/34A Processor Overview]		* [https://www.pdp-11.nl/pdp11-34a/pdp11-34general.html PDP-11/34A Processor Overview]

@@ Line 1: / Line 1: @@
 The '''PDP-11/34A''' is the version of the [[PDP-11/34]] with the upgraded [[KD11-EA CPU|KD11-EA]] [[Central Processing Unit|CPU]] needed to supported the optional [[FP11-A Floating-Point Processor|FP11-A]] [[FP11 floating point|floating point]] unit and/or the [[KK11-A Cache Memory|KK11-A]] [[cache]].
-A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor|hex]] boards of the [[KD11-E CPU|KD11-E]] CPU.
+A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor|hex]] [[printed circuit board|boards]] of the [[KD11-E CPU|KD11-E]] CPU. Since the [[DD11-P backplane]] of the -11/34 was not modified, if the cache or floating point boards were added, it used a baroque system of special [[over the back|over the top]] (OTT) connectors to join up one or both to the rest of the CPU.
 {{semi-stub}}
 {{PDP-11}}
 [[Category: UNIBUS PDP-11s]]

← Older revision		Revision as of 23:37, 19 December 2018
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	{{PDP-11}}		{{PDP-11}}
		+
		+	[[Category: UNIBUS PDP-11s]]

← Older revision		Revision as of 16:19, 6 December 2017
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−	The '''PDP-11/34A''' is the version of the [[PDP-11/34]] with the upgraded [[KD11-EA CPU\|KD11-EA]] [[Central Processing Unit\|CPU]] needed to supported the optional [[FP11-A Floating-Point Processor\|FP11-A]] [[FP11 floating point\|floating point]] unit and/or the [[KK11-A ~~cache~~\|KK11-A]] [[cache]].	+	The '''PDP-11/34A''' is the version of the [[PDP-11/34]] with the upgraded [[KD11-EA CPU\|KD11-EA]] [[Central Processing Unit\|CPU]] needed to supported the optional [[FP11-A Floating-Point Processor\|FP11-A]] [[FP11 floating point\|floating point]] unit and/or the [[KK11-A Cache Memory\|KK11-A]] [[cache]].

	A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor\|hex]] boards of the [[KD11-E CPU\|KD11-E]] CPU.		A PDP-11/34 could be converted to a PDP-11/34A by simply replacing the two [[DEC card form factor\|hex]] boards of the [[KD11-E CPU\|KD11-E]] CPU.