|
gptkbp:instanceOf
|
computer
|
|
gptkbp:architect
|
18-bit
|
|
gptkbp:busConnections
|
gptkb:UNIBUS
|
|
gptkbp:compatibleWith
|
gptkb:PDP-11
|
|
gptkbp:coolingSystem
|
air-cooled
|
|
gptkbp:developer
|
Artificial_Intelligence_research
|
|
gptkbp:dimensions
|
30 x 24 x 72 inches
|
|
gptkbp:formFactor
|
rack-mounted
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
PDP-20 D
|
|
gptkbp:inputOutput
|
gptkb:UNIBUS
disk drives
printers
tape drives
terminals
|
|
gptkbp:language
|
Assembler
COBOL
ALGOL
LISP
BASIC
FORTRAN
|
|
gptkbp:manufacturer
|
gptkb:Digital_Equipment_Corporation
|
|
gptkbp:notableEvent
|
gptkb:Maclisp
gptkb:VAX/VMS
gptkb:PDP-10
gptkb:Dungeons_&_Dragons
gptkb:SAS
Zork
Scribe
Emacs
Sketchpad
Multics
TOPS-10
LISP Machine
NLS
Interlisp
TOPS-20
SAGE
MDL
Dynamic_Modeling_Group_software
|
|
gptkbp:notableFeature
|
time-sharing system
|
|
gptkbp:notableUsers
|
gptkb:Harvard_University
gptkb:Stanford_University
gptkb:University_of_California,_Berkeley
gptkb:Carnegie_Mellon_University
gptkb:MIT
|
|
gptkbp:operatingHours
|
TOPS-20
|
|
gptkbp:powers
|
AC power
|
|
gptkbp:processor
|
KA-10
|
|
gptkbp:RAM
|
core memory
|
|
gptkbp:releaseYear
|
1967
|
|
gptkbp:successor
|
gptkb:PDP-10
|
|
gptkbp:userBase
|
academic institutions
|
|
gptkbp:weight
|
approximately 1000 lbs
|