System Analysis and Design
Reverse video is a technique of

emphasizing data by reversing the foreground and background
showing data with half brightness
None of these
showing data upside down on the screen
hiding confidential data on the screen

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System Analysis and Design
System prototyping helps the designer in

making the programmers understand how the system will function.
all of the listed here
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
giving a demo of the software, to the system manager to whom he reports

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