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• VAX 7000 series
  ...[[Laser System Bus|LSB Bus]] system [[bus]]; the [[Central Processing Unit|CPUs]] (up to 6), [[main memory]] units, and an 'I/O port' (IOP) module attached They shared much of their cabinetry and components with the [[DEC Alpha|Alpha]]-based [[7000 AXP series]] systems, and also with the [[VAX 10
  2 KB (297 words) - 00:42, 7 May 2024
• FPJ11 floating point accelerator
  ...a single chip which is plugged into a [[chip socket|socket]] on a [[KDJ11 CPUs|KDJ11 CPU]] card. Two versions of the FPJ11 exist; the FPJ11-AA and the FPJ11-AB. DEC had a number of problems with 'corner cases' (e.g. [[Direct Memory Access|D
  2 KB (276 words) - 21:06, 2 July 2023
• BA11 mounting boxes
  ...960]] series of 19"-wide racks produced by [[Digital Equipment Corporation|DEC]]. Although they were intended to principally be rack-mounted, many were av ...BA11-K mounting box|BA11-K]] - used to hold both [[Central Processing Unit|CPUs]] as well as [[device controller]]s for UNIBUS -11's
  2 KB (341 words) - 03:06, 11 July 2023
• UNICHANNEL 15 System
  * A data channel between the two CPUs, which allows them to interrupt each other; this channel is implemented wit ...15-HUCMA-B-D_UC15_Nov73.pdf UC15 unichannel-15 system maintenance manual] (DEC-15-HUCMA-B-D)
  1 KB (180 words) - 14:48, 28 November 2022
• KD11-A CPU
  ...Time Clock]] (the latter being a standard option across a number of PDP-11 CPUs). The basic KD11-A was contained on four [[DEC card form factor|hex]] cards:
  4 KB (588 words) - 05:52, 8 April 2024
• KB11-A CPU
  The KB11-A was the first of a [[KB11|series of PDP-11 CPUs]] which were modified versions of this design. ...1/1145/KB11-A_Maint.pdf KB11-A central processor unit maintenance manual] (DEC-11-HKBB-D)
  3 KB (395 words) - 21:08, 2 July 2023
• PDP-11/74
  ...orporation|DEC]]; it could hold from two to four [[Central Processing Unit|CPUs]]. ...[[disk]]s and [[magnetic tape drive]]s, could be shared between two of the CPUs, using the multi-port capabilities of many [[MASSBUS]] devices; other devic
  2 KB (257 words) - 22:57, 21 August 2021
• BC11A UNIBUS cable
  ...nnect together [[UNIBUS]] elements (such as [[:Category: UNIBUS Processors|CPUs]], [[system unit]]s, and free-standing [[peripheral|devices]] such as the [ Note that correct [[Digital Equipment Corporation|DEC]] nomenclature does not include a hyphen before the 'A'; an added hyphen, f
  1 KB (176 words) - 12:47, 16 October 2021
• FPF11 floating point processor
  ...or]] module which provides high-performance [[floating point]] for [[KDF11 CPUs]] (which use the [[F-11 chip set]]); it implements [[FP11 floating point|FP It is a [[DEC card form factor|quad]] [[printed circuit board|board]] (the M8188) which p
  2 KB (383 words) - 02:31, 12 October 2022
• LSI-11 chip set
  ...cessing Unit|CPU]] [[integrated circuit|chip]] set is used in the [[LSI-11 CPUs]] - the original [[LSI-11]], and the later [[LSI-11/2]]. Chip numbers of the form 23-xxxxx-rr, etc are [[DEC part number]]s (where 'rr' seems to represent a revision number - 0, if not
  5 KB (773 words) - 22:42, 20 December 2023
• KM11-A Maintenance Set
  ...rform maintenance activities on early [[PDP-11]] [[Central Processing Unit|CPUs]] and some early PDP-11 [[peripheral]]s. As produced by DEC, a KM11 consists of a W131 Maintenance Indicator Module plugged into a W130
  3 KB (421 words) - 18:49, 27 February 2023
• PDP-11 Bootstrap Loader
  [[QBUS CPU ODT‎|ODT]] in the [[LSI-11 CPUs]] also has a command to load programs in bootstrap loader format. ...cumented in some detail in the "paper tape software programming handbook" (DEC-11-GGPB-D), pp. 6-1 to 6-8.
  3 KB (527 words) - 19:52, 16 November 2023
• LSI-11 CPUs
  ...orporation|DEC]]'s first cost-reduced [[PDP-11]] [[Central Processing Unit|CPUs]], using a [[microprocessor]] (the [[LSI-11 chip set]]). They also used a n The first [[LSI-11]] was a [[DEC card form factor|quad]] board (M7264) with additional functionality on-boar
  3 KB (453 words) - 16:35, 6 April 2024
• KA650 CPU
  ...[[MicroVAX]], [[VAXserver]], and [[VAXstation]] systems. It is a single [[DEC card form factor|quad]]-height [[printed circuit board|PCB]] which plugs in The only differences between the two CPUs are the system [[ROM]]s:
  3 KB (369 words) - 08:32, 12 September 2023
• DEC Modules by bus
  == [[DEC 4000]] Modules == | style="padding: 0 1em 0;" | DEC 4000-600 CPU 1MB cache [[#ref_5|[5]]]
  51 KB (6,185 words) - 15:20, 15 January 2024
• PDP-11 family differences appendix
  ...n the fine details of their behavior. (Had [[Digital Equipment Corporation|DEC]] formalized the [[PDP-11 architecture]] earlier, these might not have happ | 03 || [[LSI11 CPUs]]
  2 KB (343 words) - 03:12, 13 September 2020
• DEC part number
  ...' (sometimes the first hyphen is omitted). [[Digital Equipment Corporation|DEC]] had a system for their part numbers, such that looking at a part number w ...these numbers are ''not'' 'DEC part numbers', as defined by the applicable DEC specifications (below).
  3 KB (363 words) - 16:38, 14 August 2022
• DA10 Twelve- and Eighteen-Bit Computer Interface
  ...[[PDP-10]] [[mainframe]]s to a variety of [[Digital Equipment Corporation|DEC]] [[minicomputer]]s which could be equipped with negative I/O [[bus]]es, fo ..., it could be connected to [[KA10]] and [[KI10]] [[Central Processing Unit|CPUs]], but only to [[KL10]]s with the optional [[DIA20 In/Out Bus Controller]]
  3 KB (442 words) - 14:51, 7 March 2023
• DTE20 Ten-Eleven Interface
  ...or Interface''') is a [[peripheral]] on [[KL10]] [[Central Processing Unit|CPUs]] which allows a [[PDP-11]] to act as a [[front end]]. Depending on how the A 'restricted' DTE20 consists of a pair of [[DEC card form factor|hex]] boards (M8552, M8553) and a dual card (M8554), plugg
  2 KB (410 words) - 13:14, 12 November 2023
• DIA20 IBus Adapter
  ...nal [[device controller|controller]] on [[KL10]] [[Central Processing Unit|CPUs]] which provides an old-style [[PDP-10 I/O Bus]] (termed an 'IBus'), to all It consists of a number of [[DEC card form factor|hex]] boards (two M8550s and an M8551) plugged into an I/O
  2 KB (282 words) - 12:34, 6 November 2023

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