IBM 729 Magnetic Tape Unit

URI: https://gptkb.org/entity/IBM_729_Magnetic_Tape_Unit
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf magnetic tape data storage device
gptkbp:countryOfOrigin gptkb:United_States
gptkbp:displayedAt gptkb:Computer_History_Museum
gptkb:National_Museum_of_American_History
gptkbp:encodes gptkb:NRZI
gptkb:PE_(Phase_Encoding)
https://www.w3.org/2000/01/rdf-schema#label IBM 729 Magnetic Tape Unit
gptkbp:introduced 1958
gptkbp:manufacturer gptkb:IBM
gptkbp:maxTapeLength 2400 feet
gptkbp:mediaType magnetic tape
gptkbp:notableFeature automatic threading
vacuum column tape handling
write protection ring
gptkbp:numberOfTracks 7
gptkbp:predecessor gptkb:IBM_727_Magnetic_Tape_Unit
gptkbp:recordingDensity 200 characters per inch
556 characters per inch
800 characters per inch
gptkbp:speed 75 inches per second
gptkbp:status obsolete
gptkbp:successor gptkb:IBM_2400_Series_Magnetic_Tape_Units
gptkbp:usedFor gptkb:IBM_1400_series_computers
gptkb:IBM_700_series_computers
data transfer
data storage
data backup
gptkbp:weight approximately 800 pounds
gptkbp:width 0.5 inch
gptkbp:bfsParent gptkb:IBM_1401
gptkb:IBM_1401_Data_Processing_System
gptkbp:bfsLayer 5