Operating System (OS)
The term 'polling' in a computer means a process by which a computer system

None of these
decides correct alternative by analysing several ones
detects/corrects errors
multiplexes the inputs and updates the memory accordingly
inquires to see if a terminal has any transaction to send

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Operating System (OS)
Scheduling is

None of these
not required in uniprocessor systems
the same regard-less of the purpose of the system
unrelated to performance consideration
allowing jobs to use the processor

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