well this is kinda stupid question ( stupid people ask stupid question)
what use do the keys F1 ,F2,F3,F4,F5,F6,F7,F8,F9.F10,F11.F12,HAVE

YESS i do know alt +f4 closes the program,f1 is for help but what the heck are the remaining for???
same implies for scroll lock pause ,print screen etc.??