Language Processors
A compiler is

a program that places programs into memory and prepares them for execution
a program that automate the translation of assembly language into machine language
is a program that appears to execute a source program as if it were machine language
program that accepts a program written in a high level language and produces an object program

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Language Processors
Indicate which of the following is not true about 4GL?

Many database management system packages support 4GLs
All of these
A 4GL is a software tool which is written, possibly, in some third generation language
4GL does not support a high-level of screen interaction

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Language Processors
Terminal Table

contains all constants in the program
consists of a full or partial list of the tokens 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
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure

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