Information:
The System Details note of the MARC 21
bibliographic record provides special information
on the types of equipment needed for use with a
particular form of media. For software, data such
as programming language, computer requirements, and
peripheral requirements can be recorded. For sound
and videorecordings, information about the trade
name or recording system is included. This tag may
also be used to record links to technical details relating
to digital resources.
The information included in the 538 tag for
electronic resources is set out in AACR2 rule
9.7B1b. The field begins with the words "System
requirements:" followed by five different types of
information.
1. The make and model of the computer(s) on
which the resource is designed to run
2. The amount of memory required
3. The name of the operating system
4. The software requirements (including the
programming language)
5. The kind and characteristics of any
required or recommended hardware.
The guidelines for videorecordings include the trade
name or recording system, number of lines of
resolution, and modulation frequency. The AACR2
rule describing the format for the information is
chapter 7.7B10.
The RDA guideline for recording equipment or system
requirements is 3.20.1.3. This guideline states to record
requirements such as "the make and model of equipment
or hardware, the operating system, the amount of memory,
programming language, other necessary software, any
plug-ins or peripherals required to play, view, or run the
resource." An alternative guideline is to record the equipment
or system requirement as it is presented on the resource.
Indicators
First Undefined
blank Undefined
Second Undefined
blank Undefined
Subfield
a System details note (NR)
i Display text (NR)
u Uniform Resource Identifier (R)
Punctuation
Precede each characteristic after the first by a
semicolon space.
The field ends with a period unless another mark of
punctuation (!, ?, -) is present.
If the final subfield is subfield u, the mark of punctuation
precedes that subfield.
Examples:
Electronic resources
538 _aData in extended ASCII character set.
538 _aWritten in C++.
538 _aSystem requirements: IBM 360 and 370;
9K bytes of internal memory; OS SVS
and OSMVS.
538 _aSystem requirements: Apple II, II+,
or IIe; 48 K.
538 _aSystem requirements: IBM PC; 64K;
color card; 2 disk drives.
538 _aSystem requirements: IBM PC AT or XT;
CD-ROM player and drive.
538 _aDisk characteristics: Disk is single
sided, double density soft sectored.
538 _aSystem requirements: IBM PC AT, PS/2,
or 100% compatible computer (80286
microprocessor or higher; Microsoft
Windows 3.0 or higher; 8MB hard disk
drive; 4MB of RAM; DOS 3.1 or higher;
compatible video card; one 1.2MB 5
1/4 in. diskette drive or 1.44MB 3
1/2 in. diskette drive; compatible
printer; compatible modem; compatible
mouse.
If a resource is available only by remote access,
the mode of access needs to be specified. Always
begin this note with: Mode of access:
538 _aMode of access: World Wide Web.
538 _aMode of access: Internet.
Videorecordings
538 _aVHS.
538 _aDVD.
538 _aBeta.
538 _aVHS; Dolby Hi-fi; mono.
538 _aVHS; Hi-fi stereo. surround.
538 _aVHS; Hi-fi stereo.; Cinemascope.
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