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- UNIVAC_FASTRAND abstract "FASTRAND was a magnetic drum mass storage system built by Sperry Rand Corporation for their UNIVAC 1100 series and 490/494 series computers.A voice coil actuator moved a bar containing multiple single track recording heads, so these drums operated much like moving head disk drives with multiple disks. The heads \"flew\" on self-acting hydrodynamic air bearings. The drums had a plated magnetic recording film.The Fastrands were very heavy (5,000 pounds) and large, approximately 6' long. They required special rigging and mounts to install. There were reported cases of drum bearing failures that caused the machine to tear itself apart and send the heavy drum crashing through walls.At the time of their introduction the storage capacity exceeded any other random access mass storage disk or drum.There were three models of FASTRAND drives: FASTRAND I had a single drum. The large mass of the rotating drum caused gyroscopic precession of the unit, making it tend to spin on the computer room floor as the Earth rotated under it. Very few of these devices were delivered. FASTRAND II (the majority of units produced) had two counter-rotating drums to eliminate the gyroscopic effect. One actuator bar with heads was located between the drums. FASTRAND III, introduced in 1970, was physically identical to the FASTRAND II, but increased the recording density by 50%.".
- UNIVAC_FASTRAND thumbnail Cylinder_Head_Sector.svg?width=300.
- UNIVAC_FASTRAND wikiPageExternalLink fastrand.html.
- UNIVAC_FASTRAND wikiPageID "201122".
- UNIVAC_FASTRAND wikiPageLength "4047".
- UNIVAC_FASTRAND wikiPageOutDegree "18".
- UNIVAC_FASTRAND wikiPageRevisionID "678010604".
- UNIVAC_FASTRAND wikiPageWikiLink Areal_density_(computer_storage).
- UNIVAC_FASTRAND wikiPageWikiLink Category:UNIVAC_hardware.
- UNIVAC_FASTRAND wikiPageWikiLink Category:UNIVAC_storage_devices.
- UNIVAC_FASTRAND wikiPageWikiLink Disk_controller.
- UNIVAC_FASTRAND wikiPageWikiLink Disk_read-and-write_head.
- UNIVAC_FASTRAND wikiPageWikiLink Drum_memory.
- UNIVAC_FASTRAND wikiPageWikiLink Hard_disk_drive_performance_characteristics.
- UNIVAC_FASTRAND wikiPageWikiLink History_of_computing_hardware.
- UNIVAC_FASTRAND wikiPageWikiLink List_of_UNIVAC_products.
- UNIVAC_FASTRAND wikiPageWikiLink Peripheral.
- UNIVAC_FASTRAND wikiPageWikiLink Precession.
- UNIVAC_FASTRAND wikiPageWikiLink Revolutions_per_minute.
- UNIVAC_FASTRAND wikiPageWikiLink Sperry_Corporation.
- UNIVAC_FASTRAND wikiPageWikiLink The_Story_of_Mel.
- UNIVAC_FASTRAND wikiPageWikiLink 2200_series.
- UNIVAC_FASTRAND wikiPageWikiLink File:Cylinder_Head_Sector.svg.
- UNIVAC_FASTRAND wikiPageWikiLinkText "UNIVAC FASTRAND".
- UNIVAC_FASTRAND wikiPageUsesTemplate Template:Compu-storage-stub.
- UNIVAC_FASTRAND wikiPageUsesTemplate Template:Convert.
- UNIVAC_FASTRAND wikiPageUsesTemplate Template:Mainframe-compu-stub.
- UNIVAC_FASTRAND wikiPageUsesTemplate Template:Unisys.
- UNIVAC_FASTRAND subject Category:UNIVAC_hardware.
- UNIVAC_FASTRAND subject Category:UNIVAC_storage_devices.
- UNIVAC_FASTRAND type Computer.
- UNIVAC_FASTRAND comment "FASTRAND was a magnetic drum mass storage system built by Sperry Rand Corporation for their UNIVAC 1100 series and 490/494 series computers.A voice coil actuator moved a bar containing multiple single track recording heads, so these drums operated much like moving head disk drives with multiple disks. The heads \"flew\" on self-acting hydrodynamic air bearings. The drums had a plated magnetic recording film.The Fastrands were very heavy (5,000 pounds) and large, approximately 6' long.".
- UNIVAC_FASTRAND label "UNIVAC FASTRAND".
- UNIVAC_FASTRAND sameAs Q7865337.
- UNIVAC_FASTRAND sameAs m.01ckpg.
- UNIVAC_FASTRAND sameAs Q7865337.
- UNIVAC_FASTRAND wasDerivedFrom UNIVAC_FASTRAND?oldid=678010604.
- UNIVAC_FASTRAND depiction Cylinder_Head_Sector.svg.
- UNIVAC_FASTRAND isPrimaryTopicOf UNIVAC_FASTRAND.