Repetition
The repetition of sequences in technology is a familiar experience for technology users.
Remember back to the last time a program or a website required a password that you just couldn't recall. The dialog box accepted your password attempt over and over and when you failed on the fifth try, it closed you out.
Picture the little "busy" icon that cycles through three or four graphics, on and on, until a task is completed.
Remember the background music on some website that plays but never ends.
All of these scenarios are the result of program looping strategies called repetition. Repetition provides the power to create programs that can flow in smooth, natural sequences of computer/human interaction.
Visualize something you do repetitively throughout the day. If you could create a program to do these things for you, what would it look like? Write the pseudocode for the program. Explain why you selected the control and variable names.