A standard computer keyboard has a set of buttons along the top, ranging from F1 to F12. These are called 'Function Keys'.
They are general purpose keys that a software application can use to carry out specific tasks.
For example many applications program F1 to be a help key.
The way they work is each button sends a standard code when pressed. The application that is making use of a function key will have a piece of code in the software something like this:-
IF (F1 Key pressed) then DO THIS
IF (F2 Key pressed) then DO THIS INSTEAD
and so on.
Challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Function Key