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- UNISERVO abstract "The UNISERVO tape drive was the primary I/O device on the UNIVAC I computer. Its place in history is assured as it was the first tape drive for a commercially sold computer.The UNISERVO used metal tape: a 1⁄2-inch-wide (13 mm) thin strip of nickel-plated phosphor bronze (called Vicalloy) 1200 feet long. These metal tape reels were very heavy. Data was recorded in eight channels on the tape (six for the data value, one parity channel for error checking, and one timing channel) at a density of 128 bits per inch. The tape could be moved at 100 inches per second, giving a nominal transfer rate of 12,800 characters per second. Data were recorded in fixed size blocks of 60 words of 12 characters each. Making allowance for the empty space between tape blocks, the actual transfer rate was around 7,200 characters per second.The UNISERVO supported both forward and backward modes on read or write operation. This offered significant advantages in data sorting and merging applications. The data transfers to/from the UNIVAC I processor were fully buffered in a one block dedicated memory, permitting instruction execution in parallel with tape movement and data transfer. The internal serial data path permitted inserting a tape data block into main memory in one instruction.UNIVAC continued to use the name UNISERVO for later models of tape drive (e.g., UNISERVO II, UNISERVO IIIC, UNISERVO VIII-C) for later computers in their product line. The UNISERVO II could read metal tapes from the UNIVAC I as well as use higher density PET film base/ferric oxide media tapes that became the industry standard. While UNIVAC was first with computer tape, and had higher performance than contemporary IBM tape drives, IBM was able to set the data interchange standard. UNIVAC was later forced to be compatible with the IBM technology.".
- UNISERVO wikiPageID "988418".
- UNISERVO wikiPageLength "3950".
- UNISERVO wikiPageOutDegree "23".
- UNISERVO wikiPageRevisionID "702959131".
- UNISERVO wikiPageWikiLink BoPET.
- UNISERVO wikiPageWikiLink Category:UNIVAC_hardware.
- UNISERVO wikiPageWikiLink Category:UNIVAC_storage_devices.
- UNISERVO wikiPageWikiLink History_of_computing_hardware.
- UNISERVO wikiPageWikiLink IBM_729.
- UNISERVO wikiPageWikiLink output.
- UNISERVO wikiPageWikiLink List_of_UNIVAC_products.
- UNISERVO wikiPageWikiLink Merge_algorithm.
- UNISERVO wikiPageWikiLink Nickel.
- UNISERVO wikiPageWikiLink Non-return-to-zero.
- UNISERVO wikiPageWikiLink Phosphor_bronze.
- UNISERVO wikiPageWikiLink Sorting.
- UNISERVO wikiPageWikiLink Synchronous_motor.
- UNISERVO wikiPageWikiLink Tape_drive.
- UNISERVO wikiPageWikiLink Tape_transport.
- UNISERVO wikiPageWikiLink UNISERVO_II.
- UNISERVO wikiPageWikiLink UNISERVO_IIA.
- UNISERVO wikiPageWikiLink UNISERVO_IIIC.
- UNISERVO wikiPageWikiLink UNISERVO_VIII-C.
- UNISERVO wikiPageWikiLink UNIVAC.
- UNISERVO wikiPageWikiLink UNIVAC_I.
- UNISERVO wikiPageWikiLinkText "UNISERVO II".
- UNISERVO wikiPageWikiLinkText "UNISERVO".
- UNISERVO wikiPageWikiLinkText "Uniservo".
- UNISERVO wikiPageUsesTemplate Template:Convert.
- UNISERVO wikiPageUsesTemplate Template:Magnetic_tape_data_formats.
- UNISERVO wikiPageUsesTemplate Template:Reflist.
- UNISERVO subject Category:UNIVAC_hardware.
- UNISERVO subject Category:UNIVAC_storage_devices.
- UNISERVO comment "The UNISERVO tape drive was the primary I/O device on the UNIVAC I computer. Its place in history is assured as it was the first tape drive for a commercially sold computer.The UNISERVO used metal tape: a 1⁄2-inch-wide (13 mm) thin strip of nickel-plated phosphor bronze (called Vicalloy) 1200 feet long. These metal tape reels were very heavy.".
- UNISERVO label "UNISERVO".
- UNISERVO sameAs Q7865304.
- UNISERVO sameAs m.03x062.
- UNISERVO sameAs Q7865304.
- UNISERVO wasDerivedFrom UNISERVO?oldid=702959131.
- UNISERVO isPrimaryTopicOf UNISERVO.