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What is a two state process model?
At any time a process is being implementing by a processor or not. Therefore a process may be in Running or not running state. When an Operating System creates a new process it enters that process into the system in the not running state. The process exists is known as to the Operating System and is waiting to execute. From time o time the currently running process will be interrupted and the dispatcher portion of the Operating System will select a new process to run. The previous process moves from the running state to the not running state and one of the other processes moves to the Running state.
Multi-user - A multi-user Operating System permits for multiple users to use the same computer at the same time and/or different times. Below are some instances of multi-user Op
Briefly discuss on I/O hardware? A controller is a collection of electronics that can operate a port, a bus, or a device. A serial-port controller is an easy controller. It is
why we say OS is a resource allocator and control program
Difference between threads and processes 1. Thread is flow of implementation. Process is group of instruction which is alike to that of a program except which may be stopped an
What is Multiprogramming? Multiprogramming is the capability of am operating system to support multiple applications running concurrently. Multiprogramming simply means that an
Developing an application for android encompass different steps as follows: Setup: Development environment is prepared during this phase. This includes downloading and installi
What is the kernel? A more common explanation is that the OS is the one program running at all times on the computer usually known as the kernel, with all else being applicati
Q. Under what conditions do page faults occur? Explain the actions taken by the operating system when a page fault occurs. Answer: A page fault take places when an access to
Q. Consider a calculating environment where a process is given the privilege of accessing object only n times. Suggest a scheme for implementing this policy. Answer: Add an i
Define Virtual memory Virtual memory is employed in all major commercial operating systems
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