|
gptkbp:instanceOf
|
mainframe computer
|
|
gptkbp:architecture
|
18-bit
|
|
gptkbp:category
|
gptkb:PDP_series
|
|
gptkbp:countryOfOrigin
|
gptkb:United_States
|
|
gptkbp:displayType
|
gptkb:Type_340_precision_CRT_display
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
PDP-7
|
|
gptkbp:input
|
CRT display
typewriter
punch tape
teletype
|
|
gptkbp:instructionSet
|
PDP-4 compatible
|
|
gptkbp:introduced
|
1964
|
|
gptkbp:length
|
18 bits
|
|
gptkbp:manufacturer
|
gptkb:Digital_Equipment_Corporation
|
|
gptkbp:marketedAs
|
low-cost scientific computer
|
|
gptkbp:notableFor
|
first implementation of Unix
|
|
gptkbp:notableUser
|
gptkb:Bell_Labs
|
|
gptkbp:numberBuilt
|
about 120
|
|
gptkbp:operatingSystem
|
gptkb:DECsys
|
|
gptkbp:powerSource
|
mains electricity
|
|
gptkbp:predecessor
|
gptkb:PDP-4
|
|
gptkbp:processor
|
discrete transistor logic
|
|
gptkbp:RAM
|
4K words standard
up to 64K words maximum
|
|
gptkbp:speed
|
1 MHz
|
|
gptkbp:successor
|
gptkb:PDP-9
|
|
gptkbp:usedFor
|
early research in computer science
|
|
gptkbp:weight
|
about 113 kg
|
|
gptkbp:bfsParent
|
gptkb:UNIX_operating_system
gptkb:Unix
gptkb:operating_system
gptkb:Research_Unix
|
|
gptkbp:bfsLayer
|
5
|