计算机概论chapter3.ppt

文档介绍：Chapter3:’(控制计算机所有操作的系统软件)mandlineWindows:GUI(GraphicUserInterface)Unix:putersystemsLinux:Freeofcharge、putingBatchprocessing(批处理)Interactiveprocessing(交互式处理)Requiresreal-timeprocessing(实时处理)Time-sharing/Multitasking(分时/多任务)ImplementedbyMultiprogramming(多道程序设计)MultiprocessormachinesLoadbalancing(负载均衡)andscaling(均分)(应用软件)PerformsspecifictasksforusersSystemsoftware(系统软件)(外壳):CommunicateswithusersTextbasedGraphicaluserinterface(GUI)Kernel(内核):PerformsbasicrequiredfunctionsFilemanager(文件管理程序)Devicedrivers(设备驱动程序)Memorymanager(内存管理程序)Scheduler(调度程序)anddispatcher(分派程序)