On Facebook, you're limited to 200 photos per album but can have an unlimited number of albums, which means you can upload an unlimited number of photos

When writing a clock application, the second hand on a clock is controlled by the ____ loop.

A. subordinate B. outer C. control D. inner

Which is not an objective of designing interfaces?

A) matching the user interface to the task B) making the user interface efficient C) generating usable queries D) appropriate feedback to the interface from users E) improving productivity