drum memory

drum-memory的词性：
n.Computer Science （名词）【计算机科学】

1. A memory device consisting of a rotating metal cylinder with a magnetizable coating on its outer surface, usually used as a nonprogrammable random-access memory.
磁鼓存储器：一种存储器设备，由旋转金属铜柱及其表面上的可磁化涂层组成，一般用作不可编程的随机存储器