The five major management functions of the operating system are: 1. Device management function, mainly responsible for data interaction between the kernel and peripheral devices; 2. Job management function, mainly responsible for human-computer interaction, graphical interface or system task management ; 3. File management function; 4. Process management function; 5. Storage management function, data storage method and organizational structure.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
The operating system (operation system, referred to as OS) is a computer program that manages computer hardware and software resources. The operating system needs to handle basic tasks such as managing and configuring memory, determining the priority of system resource supply and demand, controlling input and output devices, operating the network, and managing the file system. The operating system also provides an operating interface for users to interact with the system.
Generally speaking, the operating system can be divided into five major management functions:
Device management: mainly responsible for the data of the kernel and peripheral devices Interaction is essentially the management of hardware devices, including the allocation, initialization, maintenance and recycling of input and output devices. For example, manage audio input and output.
Job management: This part of the function is mainly responsible for the management of human-computer interaction, graphical interface or system tasks.
File management: This part of the function involves the logical and physical organization of files, directory structure and management, etc. From the perspective of the operating system, the file system is the system that allocates, maintains and recycles the storage space of the file storage, and is also responsible for the indexing, sharing and permission protection of the files. From the user's perspective, the file system is accessed based on file directories and file names.
Process management: The only sign indicating the existence of a process is the pcb (process control block), which is responsible for maintaining the information and status of the process. Process management essentially means that the system adopts certain process scheduling algorithms to reasonably allocate processing to each task.
Storage management: the storage method and organizational structure of data.
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