Operating System (OS)
System generation:

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

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Operating System (OS)
The advantage of a command processor running only built-in commands is:

the command set being common across different hardware configurations
the processing is much faster than would other-wise be the case when user defined commands are used
None of these
users can create system programs and run them as commands
flexibility to the users in running lists of commands by simply collecting them in named batch command files

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Operating System (OS)
A spooler is a

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

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