Language Processors
The Process Manager has to keep track of:

the status of each program
both (a) and (b)
the information management support to a programmer using the system
the priority of each program

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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 accepts a program written in a high level language and produces an object program
a program that automate the translation of assembly language into machine language
a program that places programs into memory and prepares them for execution

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Language Processors
In analyzing the compilation of PL/I program, the term "Machine independent optimization" is associated with

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

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

many functions do not have to be implemented twice
more flexibility is available to the programmer in which he/she may use all the features of the assembler in conjunction with macros
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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