|
gptkbp:instanceOf
|
computer
|
|
gptkbp:architect
|
16-bit
|
|
gptkbp:busConnections
|
gptkb:Unibus
|
|
gptkbp:coolingSystem
|
air-cooled
|
|
gptkbp:designedBy
|
gptkb:Digital_Equipment_Corporation
|
|
gptkbp:equipment
|
disk drives
printers
tape drives
graphics terminals
|
|
gptkbp:formFactor
|
rack-mounted
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
PDP-20
|
|
gptkbp:influencedBy
|
gptkb:PDP-1
|
|
gptkbp:inputOutput
|
serial and parallel ports
teletype
|
|
gptkbp:introduced
|
1967
|
|
gptkbp:language
|
LISP
|
|
gptkbp:legacy
|
influenced modern computing
|
|
gptkbp:marketSegment
|
education
government
scientific computing
industry
|
|
gptkbp:notableEvent
|
gptkb:Pascal
C
Scribe
ALGOL
Emacs
Multics
GNU Emacs
BASIC
FORTRAN
TECO
LISP Machine
available on modern systems
|
|
gptkbp:notableFeature
|
time-sharing capabilities
|
|
gptkbp:notableUsers
|
gptkb:Harvard_University
gptkb:Stanford_University
gptkb:University_of_California,_Berkeley
gptkb:Bell_Labs
gptkb:MIT
|
|
gptkbp:operatingHours
|
TOPS-20
|
|
gptkbp:operationalStatus
|
real-time processing
batch processing
interactive debugging
|
|
gptkbp:powers
|
approximately 1 kW
|
|
gptkbp:processor
|
gptkb:PDP-20_CPU
|
|
gptkbp:productionCompany
|
1960s to 1980s
|
|
gptkbp:RAM
|
core memory
|
|
gptkbp:relatedModel
|
gptkb:PDP-20_Model_D
gptkb:PDP-20_Model_A
|
|
gptkbp:storage
|
up to 256 KB
|
|
gptkbp:successor
|
gptkb:PDP-10
gptkb:PDP-11
|
|
gptkbp:usedIn
|
academic research
|