Language Processors
Systems software is a program that directs the overall operation of the computer, facilitates its use and interacts with the users. What are the different types of this software?

All of these
Languages
Utilities
Operating system

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Language Processors
Assembler is

a program that accepts a program written in a high level language and produces an object program
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

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Language Processors
A base register table

allows multiple programs to reside in separate areas of core at the same time
is a term that refers to the control programs of an operating system
is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain
allows the programmer to write base registers and displacements explicitly in the source program

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Language Processors
Terminal Table

a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
a permanent table which lists all key words and special symbols of the language in symbolic form
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
contains all constants in the program

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