What is operating system?Md Emon
An operating system (OS) is a system of software that provides general services for computers and software and computer programs. The operating system takes input from computers and users and provides services to users and other programs by allocating and managing various tasks and internal system resources of the computer. Operating system functions such as memory allocation and control, prioritization of system requests, control of input and output devices, computer networking, and file system management. Windows, Ubuntu, iOS, Chrome OS, Mac OS, and Android are some of the common operating systems. The operating system creates a suitable environment for running application programs. In today’s article, we are going to learn about operating systems. So, let’s get started without any delay!
Table of Contents
The function of the operating system
Since the operating system is the main program of the computer and it is used to run the computer, so it has a lot of work. The main functions of the operating system are discussed below.
Memory management means managing the computer’s primary and secondary memory. The operating system determines what kind of memory the computer will store and when. Also, the computer’s operating system determines which parts of the memory will be used and when.
When more than one task is performed on a computer, the operating system determines how long the processor will work and when. When the work is done, the next work has to be done first, if there is no work, resting the processor, all this is decided by the OS.
A specific file is placed in many directories. The operating system determines where the specific file will be placed and where the resources contained in that file will be placed.
The drive is required to perform any specific function of the computer. From different types of drives in the computer such as Sound Driver, Bluetooth Driver, Graphics Driver, WiFi Driver, etc. All of these drives are used for specific tasks.
All drives are required when working with input and output covers. And all these drives require an operating system to handle them.
The password is set rather than when the computer is running, it is managed by the operating system. And protecting a virus from the Internet, removing viruses from the device, all these operating systems manage, keep the computer safe.
The operating system improves the performance of the computer. How long it takes to run a particular service and at what time it will perform well, all these things are run by the operating system.
The historical pattern of operating system
An operating system is a combination of functions used and required on a computer that uses almost all types of applications and acts as a means of coordinating and controlling the hardware. Early computers did not have an operating system, so the software had to be adapted to hardware independently so that any work could be done. Other drivers such as peripheral device drivers had to be adapted. For all these reasons, the operating system became essential.
The operating system for IBM Corporation was created in 1981. Then others came down to make the operating system. Now there are operating systems invented by companies like Microsoft, Apple, etc. Early operating systems were quite simple and weak. Then gradually the operating systems began to improve. He will not talk about it another day.
Classification of operating system
Single-user Operating System: Only one person can work on such an operating system at a time. If a single-user operating system is installed on a specific device, then two people cannot work at the same time. Microsoft Windows is an example of a single user.
Multi-user Operating System: Many people can work together in this type of operating system where thousands of people can operate different devices using one operating system. Linux is a great example of a multi-user operating system.
Multitasking Operating System: Using this type of operating system, it is possible to perform multiple tasks simultaneously on specific devices like you can listen to music while emailing. You can write anything while listening to music. It is possible to do more than one thing at a time with the help of this operating system. Android is an example of a multitasking operating system.
Multi-Processing Operating System: In this type of operating system, programs can be used on the CPU of different devices. Windows NT, 2000, XP are all Multi-Processing Operating Systems.
Real-Time Operating System: This type of operating system accepts input from any user and gives the output immediately after taking that input. An example of a real-time operating system is Microsoft Windows.
Special operating system
There are also a few other types of computer systems that are used for specific types of work. Real-time operating systems are used in embedded environments, such as devices used by buyers, vehicles, robots, etc. Real-time operating systems have well-defined and fixed timelines. Processing must be completed within that timeframe, otherwise, the system is deemed invalid. Multimedia data supply-related work is high in multimedia systems. Some special requirements are met in the operating system used for how to show and play audio, video, and synchronized audio-video streams. Lately, due to the influence of the Internet and the World Wide Web, web browsers, networking, and communication software have become an integral part of modern operating systems.
Hopefully, you have learned the details about operating systems from the above information. If you have any further questions about these, you can let us know in the comments. So, after reading this article, if you have learned any new topic from the article, share it with your acquaintances and if you also know any such subject, don’t forget to comment.