Finally! A definitive list of what those F1–F12 keys do

The function keys on your keyboard are the most powerful computer tools that you're not using. We're going to fix that.
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The real reason your keyboard has F1 through F12

Of all the keys on your keyboard, the F1 through F12 keys at the top are likely not your most-used. While they aren’t as useless or frustrating as other keys like Scroll Lock or Insert, their ...