Operating System (OS)
System maintenance:

is necessary on all systems, regardless of how good
always requires several programs
None of these
is usually not necessary
is not required if the system is well written

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Operating System (OS)
Uniform Symbols Table

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
a permanent table which lists all key words and special symbols of the language in symbolic form
contains all constants in the program
None of these

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Operating System (OS)
The advantage(s) inherent to using high level languages is (are)

All of these
Improved debugging capability, and superior documentation
Fewer people, less management and shorter transition in learning time
A greater degree of machine independence
None of these

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