PDP-11/23-PLUS: Difference between revisions

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{{Infobox Machine|
{{Infobox Machine |
  name=PDP-11/23-PLUS |  
  name = PDP-11/23-PLUS |  
  image=PDP1123PLUS-01.jpeg |
  image = PDP1123PLUS-01.jpeg |
  caption=PDP-11/23-PLUS with two RL02s, TK50, and third party SCSI |
imgwidth = 150px |
  manufacturer=[[Digital Equipment Corporation]] |
  caption = PDP-11/23-PLUS housed in a BA11-M with two [[RL02]]s, [[TK50]], and third party [[SCSI]] drive |
  word size= 16 bit |
  manufacturer = [[Digital Equipment Corporation]] |
  virtual address= 16 bit |
  word size = 16 bit |
  physical address= 22 bit |
  virtual address = 16 bit |
  bus arch= [[QBUS]] |
  physical address = 22 bit |
  year introduced = November 1981
  bus arch = [[QBUS]] |
|}}
  year introduced = November 1981 |
}}
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.
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 ===
=== Essential parts that make up a PDP 11/23-PLUS ===
Line 17: Line 19:
* M8189 [[KDF11-B CPU]] board
* M8189 [[KDF11-B CPU]] board
* 22-bit QBUS [[backplane]]
* 22-bit QBUS [[backplane]]
{{semi-stub}}


==External links==
==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]
* [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]
* [http://www.bitsavers.org/pdf/dec/pdp11/1123/EK-23BMB-UG_001_1123B_MountingBox_Jan82.pdf PDP-11/23B Mounting Box User's Guide]
* [http://www.bitsavers.org/pdf/dec/pdp11/1123/EK-23BMB-UG_001_1123B_MountingBox_Jan82.pdf PDP-11/23B Mounting Box User's Guide]
* [http://www.bitsavers.org/pdf/dec/pdp11/handbooks/EB-24944-18_Micro_PDP-11_Handbook_1983-84.pdf MicroPDP-11 Handbook]


{{PDP-11s}}
{{Nav PDP-11}}


[[Category: QBUS PDP-11s]]
[[Category: QBUS PDP-11s]]

Latest revision as of 14:36, 6 April 2024


PDP-11/23-PLUS

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


v • d • e PDP-11 Computers and Peripherals
UNIBUS PDP-11s - PDP-11/20 • PDP-11/15 • PDP-11/35 • PDP-11/40 • PDP-11/45 • PDP-11/50 • PDP-11/55 • PDP-11/70
PDP-11/05 • PDP-11/10 • PDP-11/04 • PDP-11/34 • PDP-11/60 • PDP-11/44 • PDP-11/24 • PDP-11/84 • PDP-11/94

QBUS PDP-11s - PDP-11/03 • PDP-11/23 • PDP-11/23+ • MicroPDP-11/73 • MicroPDP-11/53 • MicroPDP-11/83 • MicroPDP-11/93

QBUS CPUs: LSI-11 • LSI-11/2 • KDF11-A • KDF11-B • KDJ11-A • KDJ11-B • KDJ11-D • KDJ11-E

Buses: UNIBUS • UNIBUS map • SPC • MUD • EUB • QBUS • CD interconnect • PMI

Also: PDP-11 architecture • PDP-11 Extended Instruction Set • FP11 floating point • PDP-11 Memory Management

UNIBUS CPUs: KA11 • KC11 • KB11-A • KB11-B • KB11-C • KB11-D • KD11-A • KD11-B • KD11-D • KD11-E • KD11-EA • KD11-K • KD11-Z • KDF11-U

Co-processors: FP11-A • FP11-B • FP11-C • FP11-E • FP11-F • KE44-A • FPF11

Chips: LSI-11 • KEV11-A • KEV11-B • KEV11-C • F-11 • KEF11-A • KTF11-A • T-11 • J-11 • FPJ11

CPU options: KE11-E • KE11-F • KJ11-A • KT11-C • KT11-D • KK11-A • KK11-B • KT24 • KTJ11-B

Rare CPU options: KS11 Memory Protection and Relocation option • KT11-B Paging Option • KUV11 Writeable Control Store

Front panels: KY11-A • KY11-D • KY11-J • KY11-LA • KY11-LB • KY11-P

More on buses: UNIBUS and QBUS termination • Bus Arbitration on the Unibus and QBUS • CTI BUS

PDT-11s - PDT-11/110 • PDT-11/130 • PDT-11/150   CTI PDP-11s - PRO-325 • PRO-350 • PRO-380

Clones: CM 1420 • SM 1420

Other: FIS floating point • PDP-11 Commercial Instruction Set • PDP-11 stacks • PDP-11 family differences

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