Keyboard with Bad Function Keys
Keyboard with Bad Function Keys
This is a example of keyboard with worst function keys.

Its function keys are in a continuous row, no gap between keys, and uses hard-to-press cheap buttons.
Better Design of Function Keys
- Function Keys need to be put into groups, with tactile gaps between them, so that it's easy to press the right key without needing to look at the keyboard.
- Function Keys need to be normal sized keys, easy to press. Not tiny buttons or secial buttons.
If the function keys is not easy to press, then, it's not good to put frequently used commands to them.