PDP-8 family: Difference between revisions

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''For information about the PDP-8 [[architecture]] in general, see [[PDP-8 architecture]].''
The '''PDP-8 family''' was a range of 12-[[bit]] [[minicomputer]]s produced by [[Digital Equipment Corporation|DEC]].  
The '''PDP-8 family''' was a range of 12-[[bit]] [[minicomputer]]s produced by [[Digital Equipment Corporation|DEC]].  


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|-
|-
| [[PDP-8/L]] || 1968      || 1971        || ???    || TTL FLIP CHIPs || Stripped down PDP-8/I
| [[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-12]]  || 1969      || ???          || ???    || TTL FLIP CHIPs || New version of LINC-8
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| [[DECmate III|DECmate III+]] || 1985 || 1990 || ??? || Harris 6120    || Desktop
| [[DECmate III|DECmate III+]] || 1985 || 1990 || ??? || Harris 6120    || Desktop
|}
|}
as well as two [[microprocessor]] implementations:
as well as three [[microprocessor]] implementations:


* Fabri-Tek [[Fabri-Tek MP12|MP12]]
* Intersil 6100 used in the [[VT78]]
* Intersil 6100 used in the [[VT78]]
* Harris 6120, used in the [[DECmate]] systems
* Harris 6120, used in the [[DECmate]] systems
== Architecture ==
See [[PDP-8 architecture]]


== Operating Systems ==
== Operating Systems ==
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==See also==
==See also==


* [[PDP-8 Memory Expansion units‎‎]]
* [[PDP-8 Memory Extension units‎‎]]
 
==Further reading==
 
* C. Gordon Bell, J. Craig Mudge, John. E. McNamara, "''Computer Engineering: A DEC View of Hardware Systems Design''" (Digital Press, Bedford, 1978) - Chapter 7 covers the PDP-8 family


==External links==
==External links==


* [http://www.bitsavers.org/pdf/dec/pdp8 PDP-8] - Original PDP-8 documents
* [http://www.bitsavers.org/pdf/dec/pdp8 PDP-8] - Original PDP-8 documents at Bitsavers
* [http://www.vaxarchive.org/hardware/pdp11/pdp8rc.tar PDP-8 reference card] (images in TAR file)
* 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
* [https://www.pdp8online.com/ Online PDP-8 Home Page] - David Gesswein's PDP-8 site
** [http://www.pdp8online.com/query_docs/query_all.html PDP-8 Document Search Results]
* [http://highgate.comm.sfu.ca/pdp8/ Highgate's PDP-8 Page]
* [http://homepage.cs.uiowa.edu/~jones/pdp8/models/ PDP-8 Models and Options] - Douglas Jones' PDP-8 site
* [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
* [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."
* [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.


{{PDP-8}}
{{Nav PDP-8}}
{{DEC}}
{{Nav DEC}}


[[Category: DEC Architectures]]
[[Category: DEC Architectures]]
[[Category: PDP-8s]]
[[Category: PDP-8s]]

Latest revision as of 14:09, 19 September 2025

For information about the PDP-8 architecture in general, see PDP-8 architecture.

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

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

Retrieved from "https://gunkies.org/w/index.php?title=PDP-8_family&oldid=36710"