The operating system is a computer program that manages computer hardware and software resources. It is also the core and cornerstone of the computer system. 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. (Recommended learning: web front-end video tutorial)
In computers, the operating system is the most basic and most important basic system software. From the perspective of computer users, the computer operating system is reflected in the various services it provides; from the perspective of programmers, it mainly refers to the interface or interface for user login; if from the perspective of designers, From a perspective, it refers to the connections between various modules and units. In fact, the key to the design and improvement of a new operating system is the design of the system structure. After decades of development, the computer operating system has developed from a simple control loop at the beginning to a more complex one. Distributed operating systems, coupled with the increasingly diverse needs of computer users, computer operating systems have become one of the complex and huge computer software systems. The computing operating system can be said to be very important to the computer. From the user's perspective, the operating system can schedule various resource blocks of the computer system, including software and hardware equipment, data information, etc. , the use of computer operating systems can reduce the work intensity of manual resource allocation, reduce the user's intervention in computing operations, and the computer's intelligent work efficiency can be greatly improved. Secondly, in terms of resource management, if multiple users jointly manage a computer system, there may be conflicts in the information sharing between the two users. In order to more reasonably allocate the various resource blocks of the computer and coordinate the various components of the computer system, it is necessary to give full play to the functions of the computer operating system and make an optimal use efficiency and degree of use of each resource block. Adjustments are made so that the needs of each user can be met. Finally,With the assistance of computer programs, the operating system can abstractly handle various basic functions provided by computing system resources, display operating system functions to users through visual means, and reduce the use of computers. Difficulty.
The operating system mainly includes the following functions:
①Process management, its work is mainly process scheduling, in the case of a single user and a single task Under this condition, the processor is exclusive to only one task for one user, and the work of process management is very simple. However, in the case of multi-programming or multi-user, when organizing multiple jobs or tasks, it is necessary to solve the problems of processor scheduling, allocation and recycling. ② Storage management is divided into several functions: storage allocation, storage sharing, storage protection, and storage expansion. ③Device management has the following functions: device allocation, device transmission control, and device independence. ④File management: file storage space management, directory management, file operation management, and file protection. ⑤Job management is responsible for processing any requirements submitted by users.The above is the detailed content of Is it correct that an operating system is similar to the interface between computer hardware and human users?. For more information, please follow other related articles on the PHP Chinese website!