System Analysis and Design
The time lag, between the keying of the last character on the keyboard input and the appearance of the first output character on the screen, is known as

System review
Key
response time
None of these
batch Processing

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System Analysis and Design
Rapid prototyping proves the quality of a design by

having the system analyst present an overview of the design to users, programmers, and consultants
having a program simulate the real system
None of these
both (a) and (b)
having a data flow diagram

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System Analysis and Design
Top-down programming is

a series or group of components that perform one or more operations of a more complex system
a map of the programmer's view of the data
a group of related fields
an approach in which the top module is first tested then program modules are added from the highest level to the lowest level

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