System Analysis and Design
The Turnaround is

the key information of programming
the elapsed time between the receipt of the input and the availability of the output
a program statement that violates one or more rules of the language in which it is written
None of these
a group of related fields

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System Analysis and Design
The black-box concept:

assumes that inputs and outputs will remain stable
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
assumes that the black box is independent
All of these
None of these

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