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  • BSI
    BS 6542-2:1988, EN 29293:1989, ISO 9293:1987 File structure and labelling of flexible disk cartridges for information interchange - Specification for variable file allocation structure
    Edition: 1988
    $442.60
    / user per year

Description of BS 6542-2:1988 1988

This International Standard specifies the volume and file structure of flexible disk cartridges (FDC) for the interchange of information between users of information processing systems. It also specifies an optional record structure.

This International Standard is applicable to various types of flexible disk cartridges including those identified in clause 3, and other types which may be the subject of future International Standards.

This International Standard specifies the location of files of information on a flexible disk cartridge, and also specifies a set of recorded descriptors which identifies:

  • the files which may be interchanged;
  • the locations of the files;
  • the attributes of the files;
  • the location of unused space for recording on the FDC;
  • the location of defective recording space on the FDC;
  • the attributes of the FDC and of the descriptors recorded on it.

This International Standard also specifies requirements for the processes which are provided within information processing systems to enable information to be interchanged between different systems, utilizing recorded flexible disk cartridges as the medium of interchange. For this purpose it specifies the functions within systems which are intended to originate or to receive flexible disk cartridges which conform to this International Standard.

This International Standard provides a method for the allocation of space that is independent of the number of files that are recorded on the volume. It also enables the sizes of the recorded files to be expanded or contracted during processing, subject only to the availability of unused recording space when needed.

The contents and organization of the files are not specified by this International Standard and are subject to agreement between the originator and the recipient of the interchanged FDC.



Standard NumberBS 6542-2:1988, EN 29293:1989, ISO 9293:1987
TitleFile structure and labelling of flexible disk cartridges for information interchange - Specification for variable file allocation structure
StatusDefinitive
Publication Date1988-09-30
Identical National Standard OfISO 9293:1987, EN 29293:1989
DescriptorsFlexible disks, Tags (data processing), Information exchange, Block formats, Data media, Data transfer, Sets of data, Magnetic disks, Data organization, Data layout, Addresses (data processing), Information transfer, Files, Bytes, Variable block formats
ICS35.220.21 Magnetic disks
CommitteeICT/1
ISBN0 580 16705 4
PublisherBSI
Pages34

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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