一、按故障的性质可分为硬件的故障和软件故障。 1.硬件故障是指硬件的物理损坏,又分为四类。·电器故障:主要是元器件、接插件或者印刷电路板引起的故障; ·机械故障:主要是机械部件,如磁头、打印头、键盘按键等部件的故障; ·介质故障:主要是软盘片、硬盘片等记录介质的故障; First, according to the nature of the fault can be divided into hardware failures and software failures. 1. Hardware failure refers to the physical damage to the hardware and is divided into four categories. Electrical failure: Mainly due to components, connectors or printed circuit board failure; Mechanical failure: mainly mechanical components, such as head, print head, keyboard keys and other components of the failure; Media failure: mainly floppy disk, Hard disk and other recording media failure;