Describe the term Context Switch
Describe the term Context Switch.
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Switching the CPU to other process needs saving the state of the old process and loading the saved state for a few process. This task is termed as a context switches. Context-switch time is pure overhead, since the system does no useful work when switching. Speed of this varies from machine to machine, depending upon the memory speed and the number of registers that must be copied, existed of special instructions (like a single instruction to load or store each register).
Server: Something which gives a service. The Web server delivers resources to its clients, for example. Whenever the server is an object, this is the recipient of messages from its object clients.
no-arg constructor: It is a constructor which takes no arguments. By default, each and every class without an explicit constructor has a default no-arg constructor with the public access. Its role is entirely to invoke the no-arg constructor of the in
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