PDP-8 family

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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
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 two microprocessor implementations:

  • Intersil 6100 used in the VT78
  • Harris 6120, used in the DECmate systems

Architecture

See PDP-8 architecture

Operating Systems

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

  • PDP-8 - Original PDP-8 documents


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