Operating System (OS)
Uniform Symbols Table

a permanent table which lists all key words and special symbols of the language in symbolic form
None of these
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
contains all constants in the program

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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
Performing housekeeping task like file compression and disk defragmentation
Managing hardware on the computer
Provides an interface for user to interact with computer

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