On older Mac keyboards the Apple key is the Command key.
Power key: Power management keys are three keys on computer keyboards which control the computer's power management status. They are the Power...
Fn key
there is a "Num Lk" key usually at the top of your keyboard, press it :)
A scancode (or scan code) is the data that most computer keyboards send to a computer to report which keys have been pressed. A number, or sequence of numbers, is assigned to each key on the keyboard.
There are many meanings for F9. Some common meanings are financial reporting and function key on computer.
there are the QWERTY keyboards and the AZERTY keyboards (hope this is what you meant)
computer?
Older style office keyboards and specific purpose keyboards have F13. Most general keyboards don't have it.
The skills of keyboards. Using keyboards in other words.
computer keyboards are made from ABS (Acrylo-nitrile-butadiene-styrene) plastic
There is no Menu key on Apple keyboards.