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• PDP-11
  ...[[PDP-11/84]] and [[PDP-11/94]]) actually contained QBUS processors with a QBUS<->UNIBUS adapter board. | [[PDP-11/03|11/03]] || 1975 || [[QBUS]] || 16-bit || no || first QBUS model || 0.05
  10 KB (1,393 words) - 16:03, 23 April 2024
• QBUS
  The '''QBUS''', also called the '''LSI-11 Bus''' (from its introduction in the [[LSI-11 ...only a single shared [[bus grant line]], to do so. Later in its life, the QBUS added support for block transfers, to increase the transfer rate of the bus
  13 KB (2,043 words) - 23:27, 14 January 2024
• PDP-11/23
  The '''PDP-11/23''' was the second [[QBUS]] [[PDP-11]] system; it used the [[KDF11-A CPU]] (M8189). ...cted to the KEF11-socket on CPU board with a cable. It's based on bitslice processors, the performance is six times of the performance of the KEF11 option. (64-b
  2 KB (289 words) - 13:31, 15 May 2022
• MicroVAX I
  | BUS-Qbus = 1 @ 3.3MB/s ...icroVAX]] models from [[Digital Equipment Corporation|DEC]]. It used the [[QBUS]] as its primary [[bus]] between the [[Central Processing Unit|CPU]] (the [
  10 KB (1,543 words) - 02:27, 7 May 2024
• VT100
  ...8085]]. VT100 clones (and there were many) would use a number of different processors, not necessarily sticking to the original. * VT103 - with [[QBUS]] backplane.
  4 KB (664 words) - 14:34, 11 August 2023
• J-11 chip set
  Most uses on DEC PDP-11 [[Central Processing Unit|CPU]] boards (all for the [[QBUS]]) contain an external [[cache]]. [[Category: PDP-11 Processors]]
  2 KB (242 words) - 23:19, 29 February 2024
• KDF11-A CPU
  ...''KDF11-A CPU''' is a [[PDP-11]] [[Central Processing Unit|CPU]] for the [[QBUS]]; it is a [[DEC card form factor|dual]]-width [[printed circuit board|card ...s of [[main memory]]; later versions supported up to 4 Mbytes (but their [[QBUS CPU ODT|ODT]]'s [[address space]] is limited to 256 Kbytes). In the later m
  3 KB (424 words) - 02:05, 10 July 2023
• KDJ11-A CPU
  The '''KDJ11-A CPU''' board (M8192) is the first [[QBUS]] [[PDP-11]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set ...cache control logic inspects [[Direct Memory Access|DMA]] transfers on the QBUS and invalidates cache entries for [[main memory]] which is written to by a
  2 KB (355 words) - 21:05, 2 July 2023
• M7624-AL
  The '''M7624-AL''' is an alternative multiuser [[motherboard]] for the [[QBUS]]-based [[MicroVAX 3300/3400]]; it contains the [[Central Processing Unit| [[Category: VAX QBUS Processors]]
  681 bytes (95 words) - 02:47, 7 May 2024
• KA655 CPU
  The '''KA655 CPU''' is an alternative, replacement [[QBUS]] [[VAX]] [[Central Processing Unit|CPU]] for the earlier [[KA650 CPU]]. It [[Category: VAX QBUS Processors]]
  776 bytes (106 words) - 08:11, 17 July 2023
• KA630 CPU
  | BUS-Qbus = 1 @ 3.3MB/s ...rm factor|quad]]-height [[printed circuit board|PCB]] which plugs into a [[QBUS]] [[backplane]].
  2 KB (174 words) - 06:15, 28 June 2022
• KDF11-B CPU
  [[Category: PDP-11 QBUS Processors]]
  3 KB (507 words) - 10:58, 29 March 2022
• TPA-11/580
  : ''The console system was a qbus machine called TPA-11/110 or TPA-Janus. It was based on the russian MicroPD [[Category: VAX Processors]]
  4 KB (587 words) - 00:38, 2 January 2024
• LSI-11
  ...rst of the [[LSI-11 CPUs]]; it had the same QBUS limitations, and use of [[QBUS CPU ODT|ODT]] for control, as the others. * the KD11-J is a KD11-H sold with an [[MMV11-A QBUS core memory]] card
  3 KB (411 words) - 22:06, 20 December 2023
• LSI-11/2
  ...LSI-11]], including the use of [[QBUS CPU ODT|ODT]], and it has the same [[QBUS]] limitations as the LSI-11. * [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Products_Handbook_1985.pdf Microcomputer Products Han
  2 KB (336 words) - 18:34, 19 July 2023
• KUV11 Writeable Control Store
  ...actor|quad]] [[printed circuit board|card]] (M8018) which plugs into the [[QBUS]] [[backplane]] close to the [[Central Processing Unit|CPU]] card, and a [[ ...ro-store contents over that cable, but has read-write access to it via the QBUS. That bus also provides access to a number of control [[register]]s on the
  2 KB (337 words) - 21:12, 2 July 2023
• KDJ11-B CPU
  The '''KDJ11-B''' CPU board (M8190) is the second-generation [[QBUS]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set]] of the [ ...ce variant of the QBUS; it also supports the [[KTJ11-B UNIBUS adapter]], a QBUS->[[UNIBUS]] adapter used in the PDP-11/84.
  2 KB (391 words) - 16:40, 6 February 2024
• KDJ11-E CPU
  The '''KDJ11-E''' CPU board ('''M8981''') is the third-generation [[QBUS]] [[CPU]] card using the [[J-11 chip set]] of the [[PDP-11]] (the first and [[Category: PDP-11 QBUS Processors]]
  2 KB (254 words) - 16:41, 6 February 2024
• KTJ11-B UNIBUS adapter
  ...''' is used with the [[KDJ11-B CPU|KDJ11-B]] and [[KDJ11-E CPU|KDJ11-E]] [[QBUS]] [[Central Processing Unit|CPU]] cards to add [[UNIBUS]] capability to sys The custom 12+1 slot backplane used by the KTJ11-B was half QBUS, and half UNIBUS (the 13th 'slot' is not a full slot, it only has a [[DEC e
  6 KB (1,060 words) - 16:35, 6 February 2024
• KDF11 CPUs
  * [[KDF11-A CPU]] - M8186 - [[QBUS]] [[DEC card form factor|dual]]-width CPU used in the [[PDP-11/23]] * [[KDF11-B CPU]] - M8189 - QBUS quad-width CPU used in the [[PDP-11/23_PLUS|PDP-11/23+]]
  3 KB (394 words) - 13:49, 29 March 2022
• KDF11-U CPU
  ...t]] as the other KDF11 CPUs; however, it used the [[UNIBUS]], unlike the [[QBUS]] of the other [[KDF11 CPUs]]. It plugs into a custom slot in the likewise [[Category: PDP-11 UNIBUS Processors]]
  6 KB (1,087 words) - 16:16, 6 February 2024
• KDJ11 CPUs
  * [[KDJ11-A CPU]] - M8192 - [[QBUS]] [[DEC card form factor|dual]]-width CPU * [[KDJ11-B CPU]] - M8190 - QBUS quad-width CPU used in the [[PDP-11/73]], [[PDP-11/83]] and [[PDP-11/84]]
  3 KB (457 words) - 14:32, 21 February 2023
• F-11 chip set
  ...set includes microcode which provides 'front panel' functionality named '[[QBUS CPU ODT|ODT]]'; the ability to read and write to [[main memory]], start the [[Category:PDP-11 Processors]]
  2 KB (384 words) - 23:50, 28 March 2022
• QBUS ROMs
  ...lly specialized to a [[bootstrap]]ping use. Those early ones also included QBUS [[terminator]]s; some of the later were multi-function cards, and included ...directly visible on the QBUS, but through a window, unlike later, larger [[QBUS]] ROM cards. -->
  2 KB (236 words) - 12:58, 5 July 2023
• KD11-A CPU
  ...ough it is only a quad card; it and the KE11-F FIS card are the only non-[[QBUS]] quad cards known to have such a handle. [[Category: PDP-11 UNIBUS Processors]]
  4 KB (588 words) - 05:52, 8 April 2024
• FPF11 floating point processor
  ...cessing Unit|CPU]] board. It can be plugged into either a [[UNIBUS]] or [[QBUS]] backpane, since it does not use the [[bus]]; it only gets power from the [[Category: PDP-11 Processors]]
  2 KB (383 words) - 02:31, 12 October 2022
• LSI-11 chip set
  ...he control chip contains micro-instruction sequencing, and control for the QBUS. ...ins [[condition codes]] logic, and a data port which gives access to the [[QBUS]]' data/[[address]] lines.
  5 KB (773 words) - 22:42, 20 December 2023
• LSI-11 CPUs
  ...processor]] (the [[LSI-11 chip set]]). They also used a new [[bus]], the [[QBUS]]. ...ular instruction, and the [[main memory]] speed (with the [[asynchronous]] QBUS), that could add up to roughly 12 μseconds to that basic time. (The extra
  3 KB (453 words) - 16:35, 6 April 2024
• Bus Arbitration on the Unibus and QBUS
  '''On Bus Arbitration on the Unibus and QBUS''' ...o a bus-arbitration failure, and that this was discovered and fixed in the QBUS design.
  21 KB (3,685 words) - 04:35, 28 November 2023
• KA650 CPU
  | BUS-Qbus = 1 @ 3.3MB/s ...rm factor|quad]]-height [[printed circuit board|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA650 module number is '''M7620'''. [[#ref_4|[4]]]
  3 KB (369 words) - 08:32, 12 September 2023
• T-11 chip
  ...nded for use in [[embedded system]]s, but was also used in the [[KXT11]] [[QBUS]] [[Central Processing Unit|CPU]] [[printed circuit board|boards]]. Volume [[Category:PDP-11 Processors]]
  2 KB (283 words) - 02:27, 20 September 2022
• KY11-L to CPU interface
  ...tinuity card]]), the machine will irretrievably 'freeze'; see [[UNIBUS and QBUS termination#SACK turnaround and CPU hangs|SACK turnaround and CPU hangs]] f [[Category: PDP-11 UNIBUS Processors]]
  4 KB (650 words) - 16:50, 4 December 2022
• KDJ11-D CPU
  ...lly named the '''KDJ11-D/S''' in the later variant (below), is the third [[QBUS]] [[Central Processing Unit|CPU]] card using the [[J-11 chip set]] of the [ ...ditional memory, up to the 4MB limit of the J-11, can be utilized over the QBUS.)
  3 KB (529 words) - 12:01, 15 August 2022
• M8264 No-SACK Timeout Module
  It provides the [[UNIBUS and QBUS termination#SACK turnaround|grant timeout circuit]] which is not included i ...[M9302 UNIBUS terminator|M9302]]], the SACK timeout feature found on other processors is not required"
  4 KB (740 words) - 16:41, 20 April 2022
• VAXcluster
  ...11/750]], [[VAX-11/780]], [[VAX-11/782]], [[VAX-11/785]], and [[VAX 8600]] processors. The mass storage server is a free-standing, high-speed, intelligent device ...ontrollers that connect VAX-11/780, VAX-11/782, VAX-11/785, and VAX-11/750 processors to the CI bus.
  13 KB (1,908 words) - 19:25, 27 April 2024
• VAX Bus Interconnect
  ...up of 32 lines are shared between [[address]] and data (like the earlier [[QBUS]]). [[Parity]] is used to protect both of these during transfer over the VA
  3 KB (438 words) - 01:46, 8 May 2024
• Computer Interconnect
  In addition to processors (mostly [[VAX]]en, although there was the [[CI20 Computer Interconnect]] fo * [[CIQBA]] - [[QBUS]] CI Interface
  3 KB (442 words) - 14:50, 1 May 2024
• KD32 CPU
  ...t) and the Memory Data Bus (MDB - over the flat cable). The KD2 uses the [[QBUS]] as both its [[main memory]] and [[input/output|I/O]] [[bus]]. The KD32 uses standard Q22 [[QBUS memories]] (as used in QBUS [[PDP-11]]s).
  2 KB (298 words) - 06:29, 28 June 2022
• Digital Storage Systems Interconnect
  * [[KFQSA]] [[QBUS]] DSSI Adapter
  10 KB (1,247 words) - 21:30, 2 December 2023
• VSV21 Graphic System
  ...ctionality [[graphics]] control module capable of working on the following processors: [[Category: QBUS Display Controllers]]
  3 KB (368 words) - 19:42, 9 March 2024
• DEC Software-related Order Codes
  ...s and Services for new processors while Software Products and Services for processors already introduced remained in the old 7-Character Format. *Y - [[MicroPDP-11]] [[QBUS]]-based
  6 KB (972 words) - 17:56, 25 April 2024
• RQDX Series of MFM Disk & Floppy QBUS Controllers
  The series of the RQDX [[MFM]] Disk & Floppy [[QBUS]] Controllers: * [[RQDX1/RQDX2 MFM Disk & Floppy QBUS Controllers|RQDX1]]
  871 bytes (116 words) - 03:26, 3 January 2024
• KA660 CPU
  ...rm factor|quad]]-height [[printed circuit board|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA660 module number is '''[[M7626]]'''. [[Category: VAX QBUS Processors]]
  309 bytes (47 words) - 08:50, 17 July 2023
• KA670 CPU
  ...r|quad]]-height [[printed circuit board|PCB]] which plugs into a special [[QBUS]]/[[DSSI]] [[backplane]]. The KA670 module number is '''[[L4000]]'''. [[Category: VAX QBUS Processors]]
  325 bytes (49 words) - 08:57, 17 July 2023
• KA675 CPU
  ...r|quad]]-height [[printed circuit board|PCB]] which plugs into a special [[QBUS]]/[[DSSI]] [[backplane]]. The KA675 module number is '''[[L4002-CA]]'''. [[Category: VAX QBUS Processors]]
  328 bytes (50 words) - 08:56, 17 July 2023
• KA680 CPU
  ...r|quad]]-height [[printed circuit board|PCB]] which plugs into a special [[QBUS]]/[[DSSI]] [[backplane]]. The KA680 module number is '''[[L4002-BA]]'''. [[Category: VAX QBUS Processors]]
  328 bytes (50 words) - 09:01, 17 July 2023
• KA690 CPU
  ...r|quad]]-height [[printed circuit board|PCB]] which plugs into a special [[QBUS]]/[[DSSI]] [[backplane]]. The KA680 module number is '''[[L4002-AA]]'''. [[Category: VAX QBUS Processors]]
  328 bytes (50 words) - 09:03, 17 July 2023
• KA620 CPU
  ...rm factor|quad]]-height [[printed circuit board|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA620 module number is M7478. [[Category: VAX QBUS Processors]]
  323 bytes (48 words) - 09:11, 17 July 2023
• KA640 CPU
  ...rm factor|quad]]-height [[printed circuit board|PCB]] which plugs into a [[QBUS]] [[backplane]]. The KA640 module number is '''[[M7624]]'''. [[Category: VAX QBUS Processors]]
  308 bytes (46 words) - 09:15, 17 July 2023