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More about how MeLCat works
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MARC view
Entry Topical Term
001 - CONTROL NUMBER
- control field: 3025
003 - CONTROL NUMBER IDENTIFIER
- control field: DLC
005 - DATE AND TIME OF LATEST TRANSACTION
- control field: 20250109091236.0
008 - FIXED-LENGTH DATA ELEMENTS
- fixed length control field: 860211|| anannbabn |a ana
010 ## - LIBRARY OF CONGRESS CONTROL NUMBER
- LC control number: sh 85094982
040 ## - CATALOGING SOURCE
- Original cataloging agency: DLC
- Transcribing agency: DLC
- Modifying agency: DLC
053 #0 - LC CLASSIFICATION NUMBER
- Classification number element--single number or beginning number of span: QA76.77
- Classification number element--ending number of span: QA76.774
150 ## - HEADING--TOPICAL TERM
- Topical term or geographic name entry element: Operating systems (Computers)
450 ## - SEE FROM TRACING--TOPICAL TERM
- Topical term or geographic name entry element: Computer operating systems
450 ## - SEE FROM TRACING--TOPICAL TERM
- Topical term or geographic name entry element: Computers
- General subdivision: Operating systems
450 ## - SEE FROM TRACING--TOPICAL TERM
- Topical term or geographic name entry element: Disk operating systems
550 ## - SEE ALSO FROM TRACING--TOPICAL TERM
- Control subfield: g
- Topical term or geographic name entry element: Systems software
670 ## - SOURCE DATA FOUND
- Source citation: IAC
- Information found: (disk operating systems)