Basic Sequential Access Method?
基本顺序存取法BSAM ？
Queried Sequential Access Method?
查询顺序存取法QSAM ？
Quite simply, random access is slower than sequential access.
非常简单，随机访问比顺序访问的速度慢。
Assume slower random data access rather than fast sequential access.
假定数据访问是较慢的随机访问而非较快的连续访问。
Magnetic tape is sequential access storage and can solve the problem mentioned above.
磁带是顺序访问存储，能够解决上面所提问题。
Magnetic tape is sequential access storage and can solve the problem mentioned above.
磁带是顺序访问存储，能够解决上面所提问题。
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