Linux - User's Guide
: .
num lk .
:
.
num lk , .
)
( num lk.
num lock ) .
num lock .( :
●
num lock .
●
num lock
.
num lock num lock .
num lock num lock .
num lock :
num lk .
.
.
:
, USB ) (
USB .
,
/ .
.
.