olemus
esimene funktsiooniklahv,
paljude programmide puhul väljastab abistava spikri (Help)
=
a function key most often used to open the help for the operating system or the active running program

näiteid
https://en.wikipedia.org/wiki/Function_key

https://www.dummies.com/computers/operating-systems/linux/the-boot-prompt-function-keys-in-ubuntu-linux/

https://osxdaily.com/2020/02/11/what-do-f1-f12-f-keys-do-mac-keyboard/