Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:personal_computer
|
| gptkbp:architecture |
decimal computer
|
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:discontinued |
1964
|
| https://www.w3.org/2000/01/rdf-schema#label |
IBM 1620 Model 1
|
| gptkbp:input |
IBM punched card reader
|
| gptkbp:introduced |
1959
|
| gptkbp:length |
variable (up to 10 decimal digits)
|
| gptkbp:mainMemorySize |
20,000 decimal digits (max)
|
| gptkbp:manufacturer |
gptkb:IBM
|
| gptkbp:marketedAs |
inexpensive scientific computer
|
| gptkbp:nickname |
gptkb:CADET
|
| gptkbp:notableFeature |
no hardware adder (used table lookup for addition)
|
| gptkbp:operatingSystem |
Monitor system
|
| gptkbp:output |
gptkb:print
IBM punched card punch |
| gptkbp:platform |
typewriter
|
| gptkbp:powerSource |
vacuum tube and transistor
|
| gptkbp:RAM |
core memory
|
| gptkbp:successor |
IBM 1620 Model 2
|
| gptkbp:usedFor |
education
scientific computing |
| gptkbp:weight |
about 1,200 pounds
|
| gptkbp:bfsParent |
gptkb:IBM_1710
|
| gptkbp:bfsLayer |
7
|