Last Updated:
June 3, 2023

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Operating Systems
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In operating systems, computing refers to the process of executing programs or tasks using the resources provided by the system. The operating system is responsible for managing these resources, such as the CPU, memory, disk space, and input/output devices, to ensure that tasks are executed efficiently and without interference from other programs. Computing in operating systems involves several key concepts and components, including process management, memory management, input/output management, and scheduling. These components work together to ensure that programs can run smoothly and efficiently on the system. Process management involves the creation, scheduling, and termination of processes or tasks. The operating system must ensure that processes are created and terminated correctly, and that they are given the necessary resources to run. Memory management is the process of allocating and deallocating memory for processes. The operating system must ensure that processes have access to the necessary memory to run, and that memory is efficiently allocated and deallocated to prevent waste. Input/output management involves the management of input/output devices, such as keyboards, mice, and printers. The operating system must ensure that these devices are available to processes when needed, and that data is transferred efficiently between the devices and the processes. Scheduling involves the prioritization and sequencing of tasks to ensure that they are executed in the most efficient and effective manner possible. The operating system must determine which tasks are most important and allocate resources accordingly to ensure that they are completed in a timely manner. Overall, computing in operating systems is a complex and essential process that involves the careful management of resources to ensure that programs can run efficiently and without interference from other processes. An operating system (OS) is a software program that manages a computer's hardware and software resources and provides services for computer programs. The OS acts as an intermediary between the computer hardware and the applications running on it. It is responsible for managing system resources, such as the CPU, memory, and input/output devices. It also provides a user interface for users to interact with the computer and its applications. There are many different operating systems available, each with its own features and strengths. Some of the most common operating systems used today include:
  • Windows: This is the most popular operating system used on personal computers. Developed by Microsoft, Windows has a graphical user interface and supports a wide range of software applications.
  • MacOS: This is the operating system used on Apple's Macintosh computers. MacOS is known for its sleek design, ease of use, and integration with other Apple products.
  • Linux: This is an open-source operating system that is widely used for servers, supercomputers, and other high-performance computing applications. Linux is known for its stability, security, and flexibility.
  • Unix: This is an operating system that has been around since the 1960s and is used on many servers and mainframe computers. Unix is known for its stability, scalability, and security.
  • Android: This is the operating system used on many mobile devices, such as smartphones and tablets. Developed by Google, Android is known for its customization options and extensive app store.
  • iOS: This is the operating system used on Apple's iPhone and iPad devices. iOS is known for its security, stability, and ease of use.
There are many other operating systems available as well, including specialized systems for embedded devices, gaming consoles, and other applications. Ultimately, the choice of operating system will depend on the specific needs of the user or organization.