Magnetic tape is sequentialaccessstorage 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。
2
DB2 row compression features can decrease disk storage requirements while at the same time improve sequential read access of large queries which perform full table scans.
DB 2行压缩功能可以减少磁盘存储需求，同时改进执行全表扫描的大量查询的顺序读取访问。
3
A program references storage using the effective address computed by the processor when it executes a storageAccess or Branch instruction or when it fetches the next sequential instruction.