The 50-and-older age group accounts for 46 percent of Facebook's current membership

A system for which only input and output are prototypes is called a:

A) first-of-a-series. B) patched-up. C) nonoperational. D) selected features.

Productivity suites typically include, at minimum, all of the following EXCEPT ______.

A. spreadsheet B. word processing C. presentation D. project management