Operating System (OS)
A spooler is a

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

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Operating System (OS)
System generation:

is always quite simple
is always very difficult
varies in difficulty between systems
requires extensive tools to be understandable
None of these

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Operating System (OS)
The main function of the dispatcher (the portion of the process scheduler) is

swapping a process to the disk
suspending some of the processes when the CPU load is high
bring processes from the disk to the main memory
None of these
assigning ready process to the CPU

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