dasd 直接存取存储器
- The term DASD applies to disks or to simulated equivalents of disks and magnetic drums.
术语DASD指代磁盘或者其他磁盘的模拟替代物和磁鼓。 - You can store all types of data sets on DASD but only sequential data sets on magnetic tape.
DASD可以存储所有类型的数据集,但是磁带只能存储顺序数据集。 - VSAM is used for direct or sequential processing of fixed-length and variable-length records on DASD.
VSAM用来对DASD上定长或变长的记录进行直接或顺序的处理。
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