Operating System (OS)
All of the following are task performed by the operating system except

Controlling the access that application program has to the CPU
Provides an interface for user to interact with computer
Managing hardware on the computer
Performing housekeeping task like file compression and disk defragmentation

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Operating System (OS)
A spooler is a

Queue of print job that are waiting to print
Location in memory that maintains the contents of documents until it prints
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

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Operating System (OS)
The function(s) of the Syntax phase is(are)

to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs.
to build a uniform symbol table
to parse the source program into the basic elements or tokens of the language.
None of these
to build a literal table and an identifier table

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