MARC data was first produced in America. 196 1 year, the library of congress began the idea of library automation. With the progress of computer technology, 1963, the Library of Congress of the United States organized a feasibility investigation on the use of electronic computer technology in its internal work, 1966+ 1 year, resulting in suggestions on the standard machine-readable catalogue style, that is, MARC-.
Extended data:
Converting cataloging data into machine-readable records usually goes through the following steps:
1. Compile the input worksheet: the cataloger records and indexes the files on the worksheet according to the rules of description and cataloging, and fills in the code data and various identification symbols according to the requirements of computer processing.
2. Input data: Input the data on the worksheet into the computer, convert it into a code form that can be recognized by the computer, and check it repeatedly by machine and manual.
3. Computer processing: The computer processes the input data as required and organizes it into machine-readable records in a unified format. Machine-readable records are equivalent to bibliographies. The data constituting the machine-readable catalogue are recorded by the codes of some international, national or regional character graphic coding character sets. For example, MARC of the Library of Congress uses the ALA character set (American Library Association character set).
4. Storage and output: Processed machine-readable records can be stored in a database or transmitted to other systems through communication lines, and can also be displayed, printed, microfilmed or recorded on magnetic media such as tapes and floppy disks for exchange.
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