Difference between revisions of "PDP-11"

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(→‎PDP-11 Models and notes)
(→‎PDP-11 Models and notes)
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|MOS memory
 
|MOS memory
 
|-
 
|-
 +
|[[PDP-11/70]]
 +
|([[1975]])
 +
|[[UNIBUS]]
 +
|22-bit
 +
|
 +
|-
 +
|[[PDP-11/03]]
 +
|([[1975]])
 +
|[[QBUS]]
 +
|16-bit
 +
|first QBUS model, first F-11
 +
|-
 +
|[[PDP-11/34]]
 +
|([[1976]])
 +
|[[UNIBUS]]
 +
|18-bit
 +
|[[PDP-11/04]]
 +
|([[1976]])
 +
|[[UNIBUS]]
 +
|16-bit
 +
|
 +
|-
 +
|[[PDP-11/55]]
 +
|([[1976]])
 +
|[[UNIBUS]]
 +
|18-bit
 +
|fast bipolar memory
 +
|-
 +
|[[PDP-11/60]]
 +
|([[1977]])
 +
|[[UNIBUS]]
 +
|18-bit
 +
|writable control store
 +
|-
 +
|[[PDP-11/23]]
 +
|([[1979]])
 +
|[[QBUS]]
 +
|18-bit ''or'' 22-bit
 +
|
 +
|-
 +
|[[PDP-11/24]]
 +
|([[1979]])
 +
|[[UNIBUS]]
 +
|22-bit
 +
|first UNIBUS model to use F-11 chip
 +
|-
 +
|[[PDP-11/44]]
 +
|([[1979]])
 +
|[[UNIBUS]]
 +
|22-bit
 +
|last non-LSI PDP-11
 +
|-
 +
|[[PDP-11/23 PLUS|PDP-11/23+]]
 +
|([[1981]])
 +
|[[QBUS]]
 +
|22-bit
 +
|
 +
|-
 +
|[[PDP-11/73]]
 +
|([[1983]])
 +
|[[QBUS]]
 +
|22-bit memory addressing
 +
|first J-11 machine, 15MHz, integrated FPU, also first PMI PDP-11
 +
|-
 +
|[[PDP-11/53]]
 +
|([[1984]])
 +
|[[QBUS]]
 +
|22-bit
 +
|S-box or standard qbus, integrated FPU
 +
|-
 +
|[[PDP-11/83]]
 +
|([[1986]])
 +
|[[QBUS]]
 +
|22-bit
 +
|J-11 at 18MHz, integrated FPU
 +
|-
 +
|[[PDP-11/84]]
 +
|([[1986]])
 +
|[[UNIBUS]]
 +
|22-bit
 +
|J-11 at 18MHz, integrated FPU, 768KiW memory
 +
|-
 +
|[[PDP-11/93]]
 +
|([[1990]])
 +
|[[QBUS]]
 +
|22-bit
 +
|J-11 at 18MHz, integrated FPU, 2MiW onboard memory
 +
|-
 +
|[[PDP-11/94]]
 +
|([[1990]])
 +
|[[UNIBUS]]
 +
|22-bit
 +
|J-11 at 18MHz, integrated FPU, 2MiW onboard memory
 
|}
 
|}
−
*[[PDP-11/70]] ([[1975]]) - [[UNIBUS]], 22-bit memory addressing (2048KiW max)
 
−
*[[PDP-11/03]] ([[1975]]) - [[QBUS]], 16-bit memory addressing (32KiW max), first QBUS model, first F-11
 
−
*[[PDP-11/34]] ([[1976]]) - [[UNIBUS]], 18-bit memory addressing (128KiW max)
 
−
*[[PDP-11/04]] ([[1976]]) - [[UNIBUS]], 16-bit memory addressing (32KiW max)
 
−
*[[PDP-11/55]] ([[1976]]) - [[UNIBUS]], 18-bit memory addressing (128KiW max), fast bipolar memory
 
−
*[[PDP-11/60]] ([[1977]]) - [[UNIBUS]], 18-bit memory addressing, writable control store
 
−
*[[PDP-11/23]] ([[1979]]) - [[QBUS]], 18-bit or 22-bit addressing depending on backplane
 
−
*[[PDP-11/24]] ([[1979]]) - [[UNIBUS]], 22-bit memory addressing, first UNIBUS model to use F-11 chip
 
−
*[[PDP-11/44]] ([[1979]]) - [[UNIBUS]], 22-bit memory addressing, last non-LSI PDP-11
 
−
*[[PDP-11/23 PLUS|PDP-11/23+]] ([[1981]]) - [[QBUS]], 22-bit memory addressing
 
−
*[[PDP-11/73]] ([[1983]]) - [[QBUS]], 22-bit memory addressing, first J-11 machine, 15MHz, integrated FPU, also first PMI PDP-11
 
−
*[[PDP-11/53]] ([[1984]]) - [[QBUS]], 22-bit memory, S-box or standard qbus, integrated FPU, integrated
 
−
*[[PDP-11/83]] ([[1986]]) - [[QBUS]], 22-bit memory addressing, J-11 at 18MHz, integrated FPU
 
−
*[[PDP-11/84]] ([[1986]]) - [[UNIBUS]], 22-bit memory addressing, J-11 at 18MHz, integrated FPU, 768KiW memory.
 
−
*[[PDP-11/93]] ([[1990]]) - [[QBUS]], 22-bit memory addressing, J-11 at 18MHz, integrated FPU, 2MiW onboard memory
 
−
*[[PDP-11/94]] ([[1990]]) - [[UNIBUS]], 22-bit memory addressing, J-11 at 18MHz, integrated FPU, 2MiW onboard memory
 
−
 
 
[[Category:DEC architectures]]
 
[[Category:DEC architectures]]

Revision as of 22:35, 15 May 2007

The PDP-11 is a series of computers introduced in 1970 by Digital Equipment Corporation (DEC).
A loaded PDP-11/23 PLUS

The machine word size was 16 bits. For more information, see PDP-11 architecture.

PDP-11 Models and notes

Model Year of Introduction Bus Type Memory Addressing Notes
PDP-11/20 (1970) UNIBUS 16-bit
PDP-11/05 (1972) UNIBUS 16-bit
PDP-11/10 (1972) UNIBUS 16-bit
PDP-11/15 (1972) UNIBUS 16-bit OEM model
PDP-11/40 (1973) UNIBUS 18-bit
PDP-11/45 (1973) UNIBUS 18-bit core memory
PDP-11/50 (1975) UNIBUS 18-bit MOS memory
PDP-11/70 (1975) UNIBUS 22-bit
PDP-11/03 (1975) QBUS 16-bit first QBUS model, first F-11
PDP-11/34 (1976) UNIBUS 18-bit PDP-11/04 (1976) UNIBUS 16-bit
PDP-11/55 (1976) UNIBUS 18-bit fast bipolar memory
PDP-11/60 (1977) UNIBUS 18-bit writable control store
PDP-11/23 (1979) QBUS 18-bit or 22-bit
PDP-11/24 (1979) UNIBUS 22-bit first UNIBUS model to use F-11 chip
PDP-11/44 (1979) UNIBUS 22-bit last non-LSI PDP-11
PDP-11/23+ (1981) QBUS 22-bit
PDP-11/73 (1983) QBUS 22-bit memory addressing first J-11 machine, 15MHz, integrated FPU, also first PMI PDP-11
PDP-11/53 (1984) QBUS 22-bit S-box or standard qbus, integrated FPU
PDP-11/83 (1986) QBUS 22-bit J-11 at 18MHz, integrated FPU
PDP-11/84 (1986) UNIBUS 22-bit J-11 at 18MHz, integrated FPU, 768KiW memory
PDP-11/93 (1990) QBUS 22-bit J-11 at 18MHz, integrated FPU, 2MiW onboard memory
PDP-11/94 (1990) UNIBUS 22-bit J-11 at 18MHz, integrated FPU, 2MiW onboard memory
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