|First Indicator||Second Indicator|
# - Undefined
# - Undefined
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.
$a - Make and model of machine
|753||##$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).
$c - Operating system
|753||##$aApple II$cDOS 3.3|
|753||##$aIBM PC$cWindows 98|
|753||##$aIBM PC$cOS/2 Warp|
$0 - Authority record control number or standard number
|753||##$aSony PlayStation 4$0(uri)http://gamemetadata.org/uri/platform/1071$2gcipplatform|
$2 - Source of term
MARC code that identifies the source of the terms in subfield $a and $c when they are from a controlled list.
Code from: Subject Heading and Term Source Codes.
|753||##$aNintendo Game Boy Advance$0(uri)http://gamemetadata.org/uri/platform/1038$2gcipplatform|
[Game compatible with two gaming platforms]
|753||##$cMicrosoft Windows 8$0(uri)http://gamemetadata.org/uri/platform/1078$2gcipplatform|
|753||##$cApple Mac OS X 10.9$0(uri) http://gamemetadata.org/uri/platform/1109$2gcipplatform
[PC/MAC game compatible with multiple operating systems]
$6 - Linkage
$8 - Field link and sequence number
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.