A term applied to a storage medium that permits data to be removed, leaving the medium in a condition to receive new data. Magnetic tape, for example, is "erasable" and paper tape is not. The term is also applied to a read-only memory(integrated circuit) that can be reprogrammed by the user.用来修饰说明某种存储媒体，可以将其存储的数据除去，以便存储新的数据。例如磁带是可擦除的，纸带是不可擦除的。该术语也用于可重新编程的只读存储器(集成电路)。
