信息技术 信息交换用12.7mm宽、128道盒式磁带 并行螺旋格式

[中文适用范围]： 本国际标准规定了盒式磁带的物理和磁性特性，使用 12.7 毫米宽的磁带，以便在驱动器之间提供此类盒式磁带的物理互换。 它还指定了记录信号的质量、记录方法和称为并行蛇形的记录格式，从而允许通过此类盒式磁带在驱动器之间进行数据交换。 该格式支持可变长度逻辑记录、高速搜索以及使用国际标准 ISO/IEC 15200 中指定的数据压缩算法。 系统之间的信息交换至少还需要交换双方就交换代码达成一致。 (s) 以及所更换墨盒上的结构规格和信息标签。 该国际标准与卷和文件结构标准（例如国际标准 ISO 1001）一起提供了数据处理系统之间的完整数据交换。 [外文原描述]： This International Standard specifies the physical and magnetic characteristics of a magnetic tape cartridge, using a magnetic tape 12,7 mm wide, so as to provide physical interchange of such cartridges between drives. It also specifies the quality of the recorded signals, the recording method and the recorded format known as Parallel Serpentine, thereby allowing data interchange between drives by means of such cartridges. The format supports variable length Logical Records, high speed search, and the use of the algorithm for data compression specified in International Standard ISO/IEC 15200. Information interchange between systems also requires, at a minimum, agreement between the interchange parties upon the interchange code(s) and the specification of the structure and labelling of the information on the interchanged cartridge. Together with a standard for volume and file structure, e.g. International Standard ISO 1001, this International Standard provides for full data interchange between data processing systems.