|
gptkbp:instanceOf
|
gptkb:personal_computer
|
|
gptkbp:category
|
second-generation computer
|
|
gptkbp:countryOfOrigin
|
gptkb:United_States
|
|
gptkbp:designedFor
|
scientific computing
|
|
gptkbp:discontinued
|
1970
|
|
gptkbp:displayType
|
console typewriter
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
IBM 1620
|
|
gptkbp:input
|
SD card
|
|
gptkbp:introduced
|
1959
|
|
gptkbp:mainframe
|
no
|
|
gptkbp:manufacturer
|
gptkb:IBM
|
|
gptkbp:marketedAs
|
inexpensive scientific computer
|
|
gptkbp:memoryType
|
core memory
|
|
gptkbp:nickname
|
gptkb:CADET
|
|
gptkbp:notableFor
|
addition and subtraction performed by table lookup
no hardware adder
|
|
gptkbp:operatingSystem
|
Monitor system
|
|
gptkbp:output
|
gptkb:print
card punch
|
|
gptkbp:powerSource
|
1.5 kW
|
|
gptkbp:processor
|
variable word length decimal
|
|
gptkbp:programmingLanguage
|
gptkb:COBOL
gptkb:ALGOL
gptkb:FORTRAN
gptkb:SPS_(Symbolic_Programming_System)
|
|
gptkbp:RAM
|
20,000 to 60,000 decimal digits
|
|
gptkbp:successor
|
gptkb:IBM_1130
|
|
gptkbp:technology
|
discrete transistors
|
|
gptkbp:usedIn
|
universities
research laboratories
|
|
gptkbp:weight
|
about 1,200 pounds
|
|
gptkbp:bfsParent
|
gptkb:Computer_History_Museum
|
|
gptkbp:bfsLayer
|
4
|
