In centralised tasks are done by one system and in distributed tasks are shared by the many computers
operating system
An operating system is a main program that serve as an interface between the users and the application programs.
The operating system.
A kernel is a generic term to represent the core or base of an operating system. Since the operating systems mentioned here are very different, so are the kernels. They are written differently with different goals in mind. Having said that, no matter what kernel or operating system you are talking about a kernel program shares the same goals no matter what the vendor is. A kernel has to be able to handle booting the system, running tasks, managing resources, and other tasks as required by an operating system. The kernel is also the resident part of the operating system; it never gets swapped out of memory. Since its function is so important it has to be memory resident all the time.
Scheduling refers to the process of determining the order in which tasks are executed by the operating system based on priority, fairness, or other criteria. Sequencing, on the other hand, refers to the specific order in which tasks are arranged or executed to achieve a desired outcome. In essence, scheduling is about managing the overall allocation of resources and time, while sequencing is about organizing tasks in a specific order for optimal performance.
An interrupt operating system is a type of operating system that can pause the execution of tasks to handle unexpected events or requests. When an interruption occurs, the operating system temporarily stops the current task, saves its state, and then processes the interrupt. Once the interrupt is handled, the operating system resumes the original task from where it left off. This allows the system to efficiently manage multiple tasks and respond to external events in a timely manner.
Process management within an operating system involves handling and coordinating tasks or processes running on the computer. This includes creating, scheduling, and terminating processes, as well as managing resources like memory and CPU usage. The operating system ensures that processes run efficiently and do not interfere with each other, ultimately optimizing the overall performance of the system.
Devices that record precise results require a real-time operating system. This is the same kind of operating system needed for a device hat performs regimented tasks.
Interrupts within an operating system are signals that temporarily pause the current task to handle a higher-priority task. They help manage and prioritize tasks by allowing the system to respond quickly to important events, such as user input or hardware requests. This ensures that critical tasks are handled promptly, improving overall system efficiency and responsiveness.
The functions of an operating system include booting the computer and performing basic tasks. The operating system manages the keyboard and mouse. It provides a graphical user interface.
The software that helps a computer perform essential operating tasks and enables other software to run is the operating system.