MD system has the advantages of both the analog cassette tape and the optical disk medium.
MD系统兼有模拟盒式录音带和光盘介质的主要优点。
2
The term may also refer to the storage of data by the transfer processing system on media such as magnetic tape or disk such that the user may not have direct and immediate access to the data.
该术语也可指转帐处理系统将数据存储于如磁带、磁盘等介质上，使得用户不能直接和立即访问数据。
3
Accidental erasure, sabotage, or physical removal of a single disk or tape could mean that a whole system has to be rebuilt, followed by a lengthy testing process.