Language Processors
Assembler is

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

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Language Processors
The advantage(s) of incorporating the macro processor into pass 1 is/ are:

more flexibility is available to the programmer in which he/she may use all the features of the assembler in conjunction with macros
many functions do not have to be implemented twice
Functions are combined and it is not necessary to create intermediate files as output from the macro processor and input to the assembler
All of these

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

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

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Language Processors
Bug means

Documenting programs using an efficient documentation tool
All of these
A logical error in a program
A difficult syntax error in a program

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