Library of Congress >> MARC >> Bibliographic >> 70X-75X >> 753

753 - System Details Access to Computer Files (R)

MARC 21 Bibliographic - Full

February 1999

First Indicator
Undefined
# - Undefined

Second Indicator
Undefined
# - Undefined


Subfield Codes
$a - Make and model of machine (NR) $b - Programming language (NR) $c - Operating system (NR)	$6 - Linkage (NR) $8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Information on the technical aspects of a computer file and any accompanying material that may be used to select and arrange the record with other records in a printed index.

Used for the type of machine, operating system, and/or programming language. This kind of added entry is assigned according to various cataloging rules to give access to the bibliographic record which otherwise would not be possible and to facilitate the capability of selecting and arranging records for production of printed indexes.

GUIDELINES FOR APPLYING CONTENT DESIGNATORS

■ INDICATORS

Both indicator positions are undefined; each contains a blank (#).

■ SUBFIELD CODES

$a - Make and model of machine


753	##$aIBM PC$bPascal$cDOS 1.1

$b - Programming language

Name of the programming language associated with the data comprising the computer file (e.g., Pascal).


753	##$aCompaq$bBasic$cDOS 3.2

$c - Operating system


753	##$aApple II$cDOS 3.3
753	##$aIBM PC$cWindows 98
753	##$aIBM PC$cOS/2 Warp

$6 - Linkage

See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number

See description of this subfield in Appendix A: Control Subfields.

INPUT CONVENTIONS

Punctuation - Field 753 does not end with a mark of punctuation unless the field ends with an abbreviation, initial/letter, or other data that ends with a mark of punctuation. No punctuation is recorded between subfields.

Library of Congress >> MARC >> Bibliographic >> 70X-75X >> 753

(02/27/2008)