The F keys are function keys. They perform different functions in different programs. F1 is used as the "Help" key throughout Microsoft Windows and Office programs. F3 will start a search...
These are known as "function keys" and it depends on what program and operating system you are running. For example, F1 usually corresponds to the program's "help". If you press Alt, these have...
Keys imply restricted access, as with house keys, code keys, etc.- here used to mean an ideological answer- or chart as to how the code is used or enciphered, as the telegraph key is used to transmit...