If you take a look at your laptop's keyboard, you'll notice that the top row keys have icons printed above, with "F" and a number, like F1, F2, and so on, below each one. These are known as function ...
There seems to be some unhappiness about Apple removing the function keys on the next MacBook Pros in lieu of a touch screen strip. I wonder how many people use those function keys, though. If you use ...