Final answer:
Navigator is not the internal search function of an iMac; that would be Spotlight, which can locate files, perform calculations, and initiate web searches.
Step-by-step explanation:
The statement that Navigator is the name of iMac's internal search function is false. The actual name of the internal search function for Mac operating systems is Spotlight. Spotlight is a selection-based search system, which creates an index of all items and files on the system. It is designed to allow the user to quickly locate a wide variety of items on the computer, including documents, pictures, music, applications, and system preferences. In addition, Spotlight can also perform functions like calculations and web searches.