Difference between revisions of "PDP-11/23-PLUS"

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{{Infobox Machine|
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{{Infobox Machine |
  name=PDP-11/23 PLUS|  
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  name = PDP-11/23-PLUS |  
  image=PDP1123PLUS-01.jpeg |
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  image = PDP1123PLUS-01.jpeg |
  caption=PDP-11/23 PLUS with two RL02s, TK50, and third party SCSI.|
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imgwidth = 150px |
  manufacturer=[[Digital Equipment Corporation]] |
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  caption = PDP-11/23-PLUS housed in a BA11-M with two [[RL02]]s, [[TK50]], and third party [[SCSI]] drive |
  word size= 16 bit|
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  manufacturer = [[Digital Equipment Corporation]] |
  virtual address= 16 bit|
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  word size = 16 bit |
  physical address= 22 bit|
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  virtual address = 16 bit |
  bus arch= [[QBUS]] |
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  physical address = 22 bit |
  year introduced = November 1981
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  bus arch = [[QBUS]] |
|}}
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  year introduced = November 1981 |
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}}
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The '''PDP-11/23-PLUS''', introduced in November 1981, introduced an integrated solution on a single [[DEC card form factor |quad]]-width [[QBUS]] board, which included [[F-11 chip set|F-11]] [[Central Processing Unit|CPU]], [[memory management]] unit, a socket for inserting an [[KEF11-A floating point chip|KEF11-A]] [[floating point processor|floating point unit]], and two [[asynchronous serial line]]s, which had a maximum speed of 19,200 baud.
  
The PDP-11/23 PLUS, introduced in November 1981, introduced an integrated solution on a single [[DEC card form factor |quad]]-width [[QBUS]] board, which included [[F-11 chip set|F-11]] [[Central Processing Unit|CPU]], [[memory management]] unit, a socket for inserting an [[KEF11-A floating point chip|KEF11-A]] [[floating point processor|floating point unit]], and two [[asynchronous serial line]]s, which had a maximum speed of 19,200 baud.
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The PDP-11/23-PLUS was initially available in a [[BA11-M mounting box]], later on it was sold as the '''MicroPDP-11''' in a [[BA23 Enclosure]].  
  
=== Essential parts that make up a PDP 11/23 PLUS ===
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=== Essential parts that make up a PDP 11/23-PLUS ===
  
 
* M8189 [[KDF11-B CPU]] board
 
* M8189 [[KDF11-B CPU]] board
* 22-bit [[QBUS]] [[backplane]]
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* 22-bit QBUS [[backplane]]
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{{semi-stub}}
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==External links==
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* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/EK-1T23B-OP-001%20PDP11-23-PLUS%20System%20Manual.pdf PDP-11/23-PLUS System Manual]
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* [http://www.bitsavers.org/pdf/dec/pdp11/1123/EK-23BMB-UG_001_1123B_MountingBox_Jan82.pdf PDP-11/23B Mounting Box User's Guide]
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* [http://www.bitsavers.org/pdf/dec/pdp11/handbooks/EB-24944-18_Micro_PDP-11_Handbook_1983-84.pdf MicroPDP-11 Handbook]
  
 
{{PDP-11s}}
 
{{PDP-11s}}
  
[[Category:QBUS PDP-11s]]
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[[Category: QBUS PDP-11s]]

Latest revision as of 17:56, 8 February 2024


PDP-11/23-PLUS
PDP1123PLUS-01.jpeg
PDP-11/23-PLUS housed in a BA11-M with two RL02s, TK50, and third party SCSI drive
Manufacturer: Digital Equipment Corporation
Year Introduced: November 1981
Word Size: 16 bit
Physical Address Size: 22 bit
Virtual Address Size: 16 bit
Bus Architecture: QBUS

The PDP-11/23-PLUS, introduced in November 1981, introduced an integrated solution on a single quad-width QBUS board, which included F-11 CPU, memory management unit, a socket for inserting an KEF11-A floating point unit, and two asynchronous serial lines, which had a maximum speed of 19,200 baud.

The PDP-11/23-PLUS was initially available in a BA11-M mounting box, later on it was sold as the MicroPDP-11 in a BA23 Enclosure.

Essential parts that make up a PDP 11/23-PLUS

External links