Language Processors
Multiprogramming was made possible by

neither (a) nor (b)
input/output units that operate independently of the CPU
operating systems
both (a) and (b)

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Language Processors
A loader is

a program that places programs into memory and prepares them for execution
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 automate the translation of assembly language into machine language

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

Many database management system packages support 4GLs
All of these
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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