<s>
It	O
can	O
sometimes	O
be	O
found	O
in	O
the	O
'	O
Power	O
Management	O
 '	O
section	O
of	O
a	O
motherboard	B-Device
's	O
BIOS/UEFI	O
setup	O
.	O
</s>
<s>
Wake	B-Protocol
On	I-Protocol
LAN	I-Protocol
,	O
Wake	B-Device
on	I-Device
ring	I-Device
,	O
and	O
IPMI	O
functions	O
could	O
also	O
be	O
used	O
to	O
start	O
a	O
computer	O
after	O
it	O
is	O
turned	O
off	O
.	O
</s>
<s>
In	O
Linux	B-Application
,	O
the	O
real	O
time	O
clock	O
alarm	O
can	O
be	O
set	O
or	O
retrieved	O
using	O
/proc/acpi/alarm	O
or	O
/sys/class/rtc/rtc0/wakealarm	O
.	O
</s>
<s>
systemd	B-Application
can	O
be	O
used	O
to	O
wake	O
a	O
system	O
and	O
run	O
a	O
task	O
at	O
a	O
specific	O
time	O
.	O
</s>
<s>
In	O
Microsoft	B-Application
Windows	I-Application
there	O
are	O
different	O
programs	O
which	O
could	O
be	O
used	O
to	O
'	O
wake	O
up	O
 '	O
a	O
computer	O
from	O
standby	O
or	O
hibernation	O
.	O
</s>
