Shulou(Shulou.com)06/03 Report--

What this article shares to you is about the management of the operating system which functions are not included. The editor thinks it is very practical, so I share it with you. I hope you can get something after reading this article. Let's take a look at it with the editor.

The four major management functions of the operating system do not include "save management". The functions of the operating system include processor management, job management, storage management, device management and file management. There is a set of processes to realize the system functions in the core of the operating system, including task management, interface management, human-computer interaction, graphical interface, voice control and virtual reality.

The management function of the operating system does not include "save management".

The functions of the operating system include processor management, job management, storage management, device management and file management.

The functions of the operating system are as follows:

(1) processor management (process management): in essence, it is the management of processor execution "time", that is, how to assign CPU to each task process control, process synchronization, process communication and scheduling reasonably.

(2) Storage management: the essence is the management of storage "space", which mainly refers to the definition of memory management, memory allocation, memory protection, memory expansion, address mapping, logical address and physical address.

(3) device management: essentially the management of hardware devices, including allocation and startup of input / output devices, completion and recovery of buffer management, device allocation, device processing, device independence and virtual devices.

(4) Information management (file management): file storage space management, directory management, file read / write management and access control.

(5) user interface (job management): command interface, graphic interface and system call are the only interfaces provided by the operating system to software developers, and developers can use it to use system functions. In the core of the operating system, there is a set of processes (subroutines) to realize the system functions, and the system call is the call to the above processes, including task management, interface management, human-computer interaction, graphical interface, voice control and virtual reality.

The above is the management of the operating system which functions are not included, the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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