Difference between revisions of "PDP-8 family"

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(New page: the PDP-8 was a 12-bit minicomputer produced by DEC. It came in the following variants * PDP-8 * LINC-8 * PDP-8/S * PDP-8/I * PDP-8/L * PDP-12 * PDP-8/E * PDP-8/F * PDP-8/M * PDP-8/...)
 
(Three now, not two.)
 
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the PDP-8 was a 12-bit minicomputer produced by [[DEC]]. It came in the following variants
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The '''PDP-8 family''' was a range of 12-[[bit]] [[minicomputer]]s produced by [[Digital Equipment Corporation|DEC]].  
  
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* PDP-8
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== Models ==
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* LINC-8
 
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* PDP-8/S
 
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* PDP-8/I
 
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* PDP-8/L
 
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* PDP-12
 
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* PDP-8/E
 
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* PDP-8/F
 
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* PDP-8/M
 
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* PDP-8/A
 
  
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as well as two microprocessor implementations.
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{| class="wikitable"
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|-
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| Model Name  || Introduced || Discontinued || Cost || Implementation || Notes
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|-
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| [[PDP-5]]  || 1963      || 1967        || ???  || [[Transistor]] [[System Module]]s || Effectively, the prototype
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|-
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| [[PDP-8]]  || 1965      || 1969        || $18,500 || Transistor [[FLIP CHIP]]s
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|-
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| [[LINC-8]]  || 1966      || 1969        || ???    || Transistor FLIP CHIPs
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|-
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| [[PDP-8/S]] || 1967      || 1970        || $10,000 || Transistor FLIP CHIPs || [[Serial computer|Serial]], ''unbelievably'' slow
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|-
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| [[PDP-8/I]] || 1968      || 1971        || ???    || [[Transistor-transistor logic|TTL]] FLIP CHIPs ||
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|-
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| [[PDP-8/L]] || 1968      || 1971        || ???    || TTL FLIP CHIPs || Stripped down PDP-8/I
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|-
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| [[LAB-8]]  || 1968      ||              ||        ||                ||
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|-
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| [[PDP-12]]  || 1969      || ???          || ???    || TTL FLIP CHIPs || New version of LINC-8
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|-
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| [[PDP-8/E]] || 1970      || 1978        || ???    || [[DEC card form factor|quad]] [[printed circuit board|PCBs]]  || First [[OMNIBUS]]
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|-
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| [[PDP-8/E|PDP-8/F]] || 1972      || ???          || ???    || quad PCBs || Smaller PDP-8/E
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|-
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| [[PDP-8/E|PDP-8/M]] || 1972      || ???          || ???    || quad PCBs || [[Original Equipment Manufacturer|OEM]] PDP-8/F
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|-
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| [[PDP-8/A]] || 1975      || ???          || ???    || single hex PCB ||
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|-
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| [[VT78]]  || 1978        || 1980        || ???    || [[Intersil 6100]] || [[Personal computer|Desktop]]
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|-
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| [[DECmate I]]|| 1980      || 1984        || ???    || [[Harris 6120]] || Desktop
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|-
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| [[DECmate II]]|| 1982    || 1986        || ???    || Harris 6120  || Desktop
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|-
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| [[DECmate III]] || 1984  || 1990        || ???    || Harris 6120    || Desktop
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|-
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| [[DECmate III|DECmate III+]] || 1985 || 1990 || ??? || Harris 6120    || Desktop
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|}
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as well as three [[microprocessor]] implementations:
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* Fabri-Tek [[Fabri-Tek MP12|MP12]]
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* Intersil 6100 used in the [[VT78]]
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* Harris 6120, used in the [[DECmate]] systems
 +
 
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== Architecture ==
 +
 
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See [[PDP-8 architecture]]
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== Operating Systems ==
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* [[OS/8]]
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* [[TSS/8]]
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* [[RTS/8]]
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==See also==
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* [[PDP-8 Memory Extension units‎‎]]
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==External links==
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* [http://www.bitsavers.org/pdf/dec/pdp8 PDP-8] - Original PDP-8 documents at Bitsavers
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* [http://www.vaxarchive.org/hardware/pdp11/pdp8rc.tar PDP-8 reference card] (images in TAR file)
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* C. Gordon Bell and John E. McNamara, [http://gordonbell.azurewebsites.net/Computer_Engineering/00000201.htm The PDP-8 and Other 12-Bit Computers], in C. Gordon Bell, J. Craig Mudge, John. E. McNamara, ''Computer Engineering: A DEC View of Hardware Systems Design'', Digital Press, Bedford, 1978
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* [https://www.pdp8online.com/ Online PDP-8 Home Page] - David Gesswein's PDP-8 site
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** [http://www.pdp8online.com/query_docs/query_all.html PDP-8 Document Search Results]
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* [http://highgate.comm.sfu.ca/pdp8/ Highgate's PDP-8 Page]
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* [http://homepage.cs.uiowa.edu/~jones/pdp8/models/ PDP-8 Models and Options] - Douglas Jones' PDP-8 site
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* [https://ethw.org/File:OMNI-pdp8.pdf The PDP-8] - "The first ‘personal’ computer for engineers and scientists ushered in the minicomputer era", John Voelker, IEEE Spectrum
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* [https://www.ricomputermuseum.org/collections-gallery/equipment/pdp-8s "Rhode Island Computer Museum: Digital Equipment PDP-8/S, S/N 517"] - "The PDP-8/S ... was designed by Saul P. Dinman and was the first CPU to cost less than $10,000. It ... does not contain any integrated circuits. Just the processor contains 1001 transistors."
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* [https://relaysbc.sourceforge.net/devlog.html "A relay PDP-8 ?"] is a paper design by Joe Allen for a 227-[[relay]] computer implementation that executes the PDP-8 instruction set.
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{{Nav PDP-8}}
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{{Nav DEC}}
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[[Category: DEC Architectures]]
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[[Category: PDP-8s]]

Latest revision as of 09:16, 30 July 2024

The PDP-8 family was a range of 12-bit minicomputers produced by DEC.

Models

Model Name Introduced Discontinued Cost Implementation Notes
PDP-5 1963 1967  ??? Transistor System Modules Effectively, the prototype
PDP-8 1965 1969 $18,500 Transistor FLIP CHIPs
LINC-8 1966 1969  ??? Transistor FLIP CHIPs
PDP-8/S 1967 1970 $10,000 Transistor FLIP CHIPs Serial, unbelievably slow
PDP-8/I 1968 1971  ??? TTL FLIP CHIPs
PDP-8/L 1968 1971  ??? TTL FLIP CHIPs Stripped down PDP-8/I
LAB-8 1968
PDP-12 1969  ???  ??? TTL FLIP CHIPs New version of LINC-8
PDP-8/E 1970 1978  ??? quad PCBs First OMNIBUS
PDP-8/F 1972  ???  ??? quad PCBs Smaller PDP-8/E
PDP-8/M 1972  ???  ??? quad PCBs OEM PDP-8/F
PDP-8/A 1975  ???  ??? single hex PCB
VT78 1978 1980  ??? Intersil 6100 Desktop
DECmate I 1980 1984  ??? Harris 6120 Desktop
DECmate II 1982 1986  ??? Harris 6120 Desktop
DECmate III 1984 1990  ??? Harris 6120 Desktop
DECmate III+ 1985 1990  ??? Harris 6120 Desktop

as well as three microprocessor implementations:

  • Fabri-Tek MP12
  • Intersil 6100 used in the VT78
  • Harris 6120, used in the DECmate systems

Architecture

See PDP-8 architecture

Operating Systems

See also

External links


v • d • e PDP-8 Computers, Software and Peripherals
PDP-8s: PDP-5 • PDP-8 • LINC-8 • PDP-8/S • PDP-8/I • PDP-8/L • PDP-12 • PDP-8/E • PDP-8/F • PDP-8/M • PDP-8/A

Workstations: VT78

Also: PDP-8 family • PDP-8 architecture • PDP-8 Memory Extension units

v • d • e Digital Equipment Corporation
18-bit machines - PDP-1 • PDP-4 • PDP-7 • PDP-9 • PDP-15

12-bit machines - PDP-5 • PDP-8 • LINC-8 • PDP-12

36-bit machines - PDP-3 • PDP-6 • PDP-10

16-/32-/64-bit machines - PDP-11 • VAX • MIPS • Alpha

Also: Buses • Peripherals • Part numbers • Engineering drawings

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