SIS SS-ISO 9293-1989 信息处理．信息互换用可折叠磁盘盒卷结构和文件结构

标准号：SIS SS-ISO 9293-1989
中文标准名称：信息处理．信息互换用可折叠磁盘盒卷结构和文件结构
英文标准名称：Information processing — Volume and file structure of flexible disk cartridges for information interchange
发布日期：1989/6/7 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This International Standard specifies the volume and file struc-ture 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 dif-ferent systems, utilizing recorded flexible disk cartridges as the medium of interchange. For this purpose it specifies the func-tions 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 alloca-tion 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.