WorldCat Identities

Valadez, Frederick

Works: 1 works in 5 publications in 1 language and 50 library holdings
Classifications: Q180.A1, 029.7
Publication Timeline
Most widely held works by Frederick Valadez
The catalog input/output system by Martin Kay( Book )

5 editions published in 1966 in English and held by 50 WorldCat member libraries worldwide

A complete definition of the format used for catalogs on magnetic tape and a description of the routines of the Catalog Input-Output System. Catalog maps, catalog data, and tape labels are written as logical records in a specially designed blocking format. Beginnings and ends of blocks, physical tapes, and catalogs are explicitly marked. The Catalog Input/Output System offers a variety of input/out unit-control operations in addition to the commands for reading and writing data in catalog format. The reading and writing commands are implemented on three levels: Level III handles individual data; Level II reads and writes logical records; and Level I processes blocks of information. (Author)
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Audience level: 0.69 (from 0.69 for The catalo ... to 0.69 for The catalo ...)