magnetic disk

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

1. A memory device covered with a magnetic coating on which information is stored by magnetization of microscopically small needles.
磁盘：一种储存装置，表面有一个磁性外套，经极微小的细针磁化后的信息储存在磁性外套上

2. A floppy disk.
软盘

3. A hard disk.
硬盘