Language Processors
Which of the following systems software does the job of merging the records from two flies into one?

Utility program
Security software
Networking software
Documentation system

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Language Processors
Assembler is

is a program that appears to execute a source program as if it were machine language
a program that places programs into memory and prepares them for execution
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

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

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

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