The operation of loading an operating system and, possibly, other system software ( from magnetic tape or disk ). It is assumed to be for start-up rather than for recovery.

• 将位于磁带或磁盘上的操作系统,也可能是其它系统级的软件,装入计算机内存之中的操作。通常指的是启动系统,而不是恢复系统。