What is Operating System? The most important software which runs on a computer is an operating system. It controls the memory and processes of the machine and all of its software and hardware.
This also lets you communicate with the computer without understanding how to talk the language of the device. A tool is useless, without an operating system.
10 main Operating System Functions
- User Interface
- to boot.
- Keep Machine Efficiency
- Accountability to Work
- Removal and Error Detection
- Error patch and bugs fixed.
- Develop Coordination
- Memory Treator
- System Handler
Operating system offers a user-friendly GUI that allows users to monitor all device triggers such as how to insert input data and view results on the computer screen.
If the operating system is switched on, then the booting cycle begins. Through addition, it tracks the whole computer system operation whether or not it is ready to function.
Operating system includes the authentic passwords to encrypt all device data and other internal memories. It also offers security for access to its services and data from unauthorized activities.
Keep Machine Efficiency
Operating System tracks the safety of the whole system and helps to increase system overall performance. This seeks to improve the response time between requesting the service and addressing the device day by day.
Accountability to Work
Operating system helps monitor all time and resources used by multiple tasks and different users, as these types of information are beneficial to individual users or user groups.
Removal and Error Detection
Operating System regularly tracks the errors and bugs found in the system.
Error patch and bugs fixed.
If the operating system detects any errors or bugs, then it attempts to patch them instantly without missing any data type.
Operating System Synchronization ensures cooperation between the users and other applications such as interpreters, compilers, assemblers, and more.
Operating system handles all operating device memory such as Main Memory (Primary Memory). Primary memory is constructed with a wide range of bytes, and a piece of address is allocated to each byte. CPU can access this memory directly as they are loaded into primary memory for all programs to be run. Now consumer programs may make seamless use of these forms of consciousness.
Operating system has a particular work model that is known as “Order Scheduling.” In this model, the OS will determine how much processing time is required for each process, and O / S tracks all process status. If any programs that can perform such tasks are referred to as the “Traffic controller.”
Top 4 Common Operating Systems
Since 1985 Microsoft Windows has existed in one form or another, and it remains the most common home and office machine operating system. The new models are still used on some devices, including Windows 10, and the OS is also used on some cloud and number-crunching server computers. Windows can be used by machines from a vast range of manufacturers.
Google’s Android OS
Android is the world’s most common operating system judging by the number of devices it has built. Google’s mainly built, it’s mostly used on smartphones and tablets. It can be used on devices manufactured by a number of different manufacturers, unlike iOS, and those manufacturers can change parts of their design to match their own needs.
Apple’s iOS is one of the most common and second only to Android smartphone operating systems. This is available on Apple’s media devices including iPhones, iPad tablets and iPod Touch.
Linux Operating System
Unlike several other operating systems, no single company leads development on Linux. In 1991 the Finnish programmer Linus Torvalds developed the operating system. Programmers from around the world are now working on the open-source code and making modifications to the core kernel software and other programs.
9 Advantages of an operating system:
- The Operating System provides the user-hardware interface.
- It is easy to use as it has a graphical user interface so novice users can quickly use it to run computers.
- Accessing hardware without writing programs: –Operating system helps one to access equipment without having to write programs.
- We can share one data with lots of users through this.
- This helps us to share resources such as as-printers, modems, fax machines, sports, etc.
- It’s secure because windows have a defender window that detects and removes some form of unsafe files.
- Through this, we can install and run any game or app.
- Some operating systems (such as–LINUX) are open-source; we can run them on my computer for free.
- This makes our system function more effectively.
5 Disadvantages of an operating system:
- Many operating systems are free, but others are costly like
- Compared with Windows, running Linux is a bit difficult.
- Often no hardware supports it,
- The chance of viruses in Mac OS is high.
- Information loss: –Often, the operating system crashes owing to the destruction of user data.
Operating System Types
The single-user system is known as a single-user system which allows only one user to use the device at a given time. The goals of these systems are to optimize user usability and responsiveness, rather than optimize the use of the CPU and peripheral equipment.
Early computers were massive machines operating as input devices and line printers, tape drives, and card punches as output devices from a console with card readers and tape drives. Instead, the user prepared a job (which consisted of the software, details, and some control information on the nature of the situation in the form of control cards) and submitted it to the computer operator.
The job was in the way of punch cards, and the machine produced output at some later time. The production consisted of the program result, as well as a final memory dump and debugging registry contents.
These systems arrange jobs in such a way that CPU only requires one to run. Through this way, the use of the CPU is improved. The operating system selects and executes in memory from between the jobs available.
The job has to wait to complete any mission, like an I / O process. In a non-multi-programmed system, the CPU will sit idle while the operating system simply moves to and performs another job in the case of a multi-programmed system.
Systems for time-sharing:
Multi-user and multi-process systems. Multi-user means a device which allows multiple users at the same time. A consumer can run one or more processes at a time inside this program. The UNIX, Linux, Windows server versions are examples of time-sharing systems.
Real-time systems are used when the operation of a processor or data flow requires strict time. These are used in a specialized program to monitor a network. The medical imaging program, for example, and the experimental experiments.
So, What is next? Let’s read about Cloud Computing.