KE11-B Extended Arithmetic Element - Revision history

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‎Further reading: available in fiche

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New page

The '''KE11-B Extended Arithmetic Element''' is a program-compatible re-implementation, on a single [[DEC card form factor|hex]] board, the M7840, of the [[KE11-A Extended Arithmetic Element]], an autonomous [[UNIBUS]] [[peripheral]] which can perform a variety of arithmetic or logical operations:

* multiplication
* division
* multi-bit shifts
** logical shift
** arithmetic shift
** [[normalization]]

The original KE11-A was produced for use with the [[PDP-11/20]], whose [[KA11 CPU]] did not have multply, divide, or multi-bit shift operations. As a UNIBUS peripheral, not integrated into the [[Central Processing Unit|CPU]], it was also usable with other models, e.g. the [[PDP-11/05]] and [[PDP-11/04]], which likewise did not implement multiplication in [[hardware]], etc. The KE11-B can be used with these later models.

{{PDP-11s}}

[[Category: PDP-11s]]

@@ Line 22: / Line 22: @@
 * [http://wwcm.synology.me/pdf/KE11-B%20Arithmetic%20Unit%20Engineering%20Drawings.pdf KE11-B Engineering Drawings]
 [[Category: PDP-11s]]
 [[Category: UNIBUS]]

← Older revision		Revision as of 16:24, 5 December 2022
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	[[Category: PDP-11s]]		[[Category: PDP-11s]]
		+	[[Category: UNIBUS]]

@@ Line 17: / Line 17: @@
 * ''KE11-B User Manual'' (EK-KE11B-OP) - not online
-* ''KE11-B Maintenance Manual'' (EK-KE11B-MM) - not online
+* ''KE11-B Maintenance Manual'' (EK-KE11B-MM) - not online, available in fiche
 ==External links==

@@ Line 1: / Line 1: @@
-The '''KE11-B Extended Arithmetic Element''' is a [[program compatible]] re-implementation (on a single [[DEC card form factor|hex]] board - the M7840) of the [[KE11-A Extended Arithmetic Element]], an autonomous [[UNIBUS]] [[peripheral]] which can perform a variety of arithmetic or logical operations:
+The '''KE11-B Extended Arithmetic Element''' is a [[program compatible]] re-implementation (on a single [[DEC card form factor|hex]] board - the M7840) of the [[KE11-A Extended Arithmetic Element]], an [[Extended Arithmetic Element]] built as an autonomous [[UNIBUS]] [[peripheral]], which can perform a variety of arithmetic or logical operations:
 * multiplication
@@ Line 8: / Line 8: @@
 ** [[normalization]]
-(The last is used for implementation of [[floating point]] in [[software]].)
+(The last is used for carrying out [[floating point]] computations in [[software]].)
-The original KE11-A was produced for use with the [[PDP-11/20]], whose [[KA11 CPU]] did not have multply, divide, or multi-bit shift operations. As a UNIBUS peripheral, not integrated into the [[Central Processing Unit|CPU]], it was also usable with other models, e.g. the [[PDP-11/05]] and [[PDP-11/04]], which likewise did not implement multiplication in [[hardware]], etc. The KE11-B can be used with these later models.
+The original KE11-A was produced for use with the [[PDP-11/20]], whose [[KA11 CPU]] did not have multply, divide, or multi-bit shift operations. As a UNIBUS peripheral, not integrated into the [[Central Processing Unit|CPU]], it was also usable with other models, e.g. the [[PDP-11/05]] and [[PDP-11/04]], which likewise did not implement multiplication in [[hardware]], etc. The KE11-B can likewise be used with these later models.
 {{PDP-11s}}
 [[Category: PDP-11s]]

← Older revision		Revision as of 15:17, 4 February 2020
Line 1:		Line 1:
−	The '''KE11-B Extended Arithmetic Element''' is a program-compatible re-implementation (on a single [[DEC card form factor\|hex]] board - the M7840) of the [[KE11-A Extended Arithmetic Element]], an autonomous [[UNIBUS]] [[peripheral]] which can perform a variety of arithmetic or logical operations:	+	The '''KE11-B Extended Arithmetic Element''' is a [[program compatible]] re-implementation (on a single [[DEC card form factor\|hex]] board - the M7840) of the [[KE11-A Extended Arithmetic Element]], an autonomous [[UNIBUS]] [[peripheral]] which can perform a variety of arithmetic or logical operations:

	* multiplication		* multiplication

← Older revision		Revision as of 20:24, 8 October 2019
Line 1:		Line 1:
−	The '''KE11-B Extended Arithmetic Element''' is a program-compatible re-implementation, on a single [[DEC card form factor\|hex]] board, the M7840, of the [[KE11-A Extended Arithmetic Element]], an autonomous [[UNIBUS]] [[peripheral]] which can perform a variety of arithmetic or logical operations:	+	The '''KE11-B Extended Arithmetic Element''' is a program-compatible re-implementation (on a single [[DEC card form factor\|hex]] board - the M7840) of the [[KE11-A Extended Arithmetic Element]], an autonomous [[UNIBUS]] [[peripheral]] which can perform a variety of arithmetic or logical operations:

	* multiplication		* multiplication