硬盘部件由硬盘驱动器和多张硬盘组合成一体,是家用电脑系统中最重要的基本存储设备之一。硬盘的容量比软盘大得多,而且存放和读取信息的速度比软盘快得多、安全得多。然而,硬盘又是电脑中故障几率较高的部件,因此,在日常使用中必须加强合理维 Hard disk drive unit composed of a combination of multiple hard drives and hard drives, home computer systems is one of the most important basic storage devices. Hard drives are much larger than floppy disks, and storing and retrieving information is much faster and more secure than floppy disks. However, the hard disk is a computer in the higher probability of failure of the parts, therefore, in the daily use must strengthen the rational dimension