The computer operating system is the interface between the user and the computer; it is the system software that manages and controls the computer's software and hardware. The user accesses and operates the computer through the operating system. 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 the computer operating system can reduce the work intensity of manual resource allocation, and the user's computing operations By reducing the degree of intervention, the computer's intelligent work efficiency can be greatly improved.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
The computer operating system is the interface between the user and the computer. The operating system is the system software that manages and controls the computer's software and hardware. Users access and operate the computer through the operating system.
The operating system (English: Operating System, abbreviation: OS) is a set of interrelated system software programs that supervises and controls computer operations, uses and runs hardware and software resources, and provides public services to organize user interaction. According to the operating environment, operating systems can be divided into desktop operating systems, mobile operating systems, server operating systems, embedded operating systems, etc.
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 optimal adjustments to the efficiency and degree of use of each resource block so that each user can All needs 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 in a visual way, and reduce the difficulty of using the computer.
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, processing The server is exclusive to one task for one user, and 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.
Use Classification
Computer operating systems are divided into different types according to different uses. From a functional perspective, they include real-time systems, batch processing systems, and time-sharing systems. systems, network operating systems, etc.
Real-time system mainly means that the system can quickly respond to external commands, handle problems within the corresponding time, and coordinate system work.
The time-sharing system can realize the user's human-computer interaction needs. Multiple users share a host, which saves resource costs to a large extent. The time-sharing system has the advantages of multi-channel, independence, interactivity and timeliness, and can realize user-system-terminal tasks.
Batch processing systems appeared in the 1960s. Batch processing systems can improve resource utilization and system throughput.
The network operating system is a software program that can replace the operating system. It is the heart and soul of the network and a special operating system that provides services to network computers. Data and various messages are transferred to each other through the network, which is divided into servers and clients. The main function of the server is to manage the sharing of various resources and network equipment on the server and the network, integrate and control traffic, and avoid the possibility of paralysis. The client is able to receive and use the data transmitted by the server. function so that clients can clearly search for the required resources.
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