Language Processors
In analyzing the compilation of PL/I program, the term "Lexical analysis" is associated with

recognition of basic syntactic constructs through reductions
use of macro processor to produce more optimal assembly code
recognition of basic elements and creation of uniform symbols
creation of more optional matrix

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

All of these
Many database management system packages support 4GLs
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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