一、物理安全保证计算机信息系统各种设备的物理安全是整个计算机系统安全的前提。物理安全是保护计算网络设备、设施以及其他媒体免受地震、水灾、火灾等环境事故以及人为操作失误或错误和各种计算机犯罪行为导致的破坏过程。它主要包括三个方面: First, the physical security assurance Computer information systems Physical security of various devices is the premise of the entire computer system security. Physical security is the protection of computing network equipment, facilities and other media from environmental accidents such as earthquakes, floods and fires, as well as damage caused by human error or error and various computer crimes. It mainly includes three aspects: