Operating System (OS)
A spooler is a

Message sent from the printer to the operating system when a print job is completed
Queue of print job that are waiting to print
Location in memory that maintains the contents of documents until it prints
Program that coordinates the print job that are waiting to process

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

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

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