Application-Dependant Keys

The third category of keys is mainly subject to programmers' choice. These are called function keys. They are F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, and F12.

Although the F1 key is usually used to get help while working in Microsoft Windows, the use of the other keys vary from one application to another. Eventually, the application you use will give you instructions on what to do and how to use the function keys.

Practical Learning: Using Application-Defined Keys

1- While Notepad is still displaying, press F1
2- Notice that the Help file opens