A keyboard ________ is a key or combination of keys that performs a task that would otherwise require a mouse

To change the case of selected text from lowercase to uppercase and vice versa, click the ____________________ button in the Font group.

Fill in the blank(s) with the appropriate word(s).

Because light beams can interfere with each other, optical computers are somewhat larger than electronic PCs.

Answer the following statement true (T) or false (F)