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Differentiate between synchronous and asynchronous input/output with the help of an example.
The input-output operation is asynchronous input/output operation since after the start of input/output, control is returned to the user program without waiting for the input/output to finish. The input/output continues and upon its completion, an interrupt is generated through the controller to attain CPU's attention.
CPU execution waits, whereas I/O proceeds, in that case, there is a possibility as at most one request I/O request is outstanding at a time. It is termed as synchronous I/O.
What is time slicing? With this technique each program runs for a short period known as a time slice, and then another program runs for its time slice and so on.
Trunks are the lines that run between? Trunks are the lines which run in between switching stations.
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