<s>
In	O
a	O
computer	O
or	O
data	O
transmission	O
system	O
,	O
a	O
reset	B-General_Concept
clears	O
any	O
pending	O
errors	O
or	O
events	O
and	O
brings	O
a	O
system	O
to	O
normal	O
condition	O
or	O
an	O
initial	O
state	O
,	O
usually	O
in	O
a	O
controlled	O
manner	O
.	O
</s>
<s>
A	O
computer	B-General_Concept
storage	I-General_Concept
program	O
would	O
normally	O
perform	O
a	O
"	O
reset	B-General_Concept
"	O
if	O
a	O
command	O
times	O
out	O
and	O
error	O
recovery	O
schemes	O
like	O
retry	O
or	O
abort	B-General_Concept
also	O
fail	O
.	O
</s>
<s>
Most	O
computers	O
have	O
a	O
reset	B-General_Concept
line	O
that	O
brings	O
the	O
device	O
into	O
the	O
startup	O
state	O
and	O
is	O
active	O
for	O
a	O
short	O
time	O
after	O
powering	O
on	O
.	O
</s>
<s>
For	O
example	O
,	O
in	O
the	O
x86	B-Operating_System
architecture	I-Operating_System
,	O
asserting	O
the	O
RESET	B-General_Concept
line	O
halts	O
the	O
CPU	O
;	O
this	O
is	O
done	O
after	O
the	O
system	O
is	O
switched	O
on	O
and	O
before	O
the	O
power	O
supply	O
has	O
asserted	O
"	O
power	O
good	O
"	O
to	O
indicate	O
that	O
it	O
is	O
ready	O
to	O
supply	O
stable	O
voltages	O
at	O
sufficient	O
power	O
levels	O
.	O
</s>
<s>
Reset	B-General_Concept
places	O
less	O
stress	O
on	O
the	O
hardware	O
than	O
power	O
cycling	O
,	O
as	O
the	O
power	O
is	O
not	O
removed	O
.	O
</s>
<s>
Many	O
computers	O
,	O
especially	O
older	O
models	O
,	O
have	O
user	O
accessible	O
"	O
reset	B-General_Concept
"	O
buttons	O
that	O
assert	O
the	O
reset	B-General_Concept
line	O
to	O
facilitate	O
a	O
system	O
reboot	B-Device
in	O
a	O
way	O
that	O
cannot	O
be	O
trapped	O
(	O
i.e.	O
</s>
<s>
Out-of-band	B-Application
management	I-Application
also	O
frequently	O
provides	O
the	O
possibility	O
to	O
reset	B-General_Concept
the	O
remote	O
system	O
in	O
this	O
way	O
.	O
</s>
<s>
Many	O
memory-capable	O
digital	O
circuits	O
(	O
flip-flops	B-General_Concept
,	O
registers	O
,	O
counters	O
and	O
so	O
on	O
)	O
accept	O
the	O
reset	B-General_Concept
signal	O
that	O
sets	O
them	O
to	O
the	O
pre-determined	O
state	O
.	O
</s>
<s>
The	O
ability	O
for	O
an	O
electronic	O
device	O
to	O
be	O
able	O
to	O
reset	B-General_Concept
itself	O
in	O
case	O
of	O
error	O
or	O
abnormal	O
power	O
loss	O
is	O
an	O
important	O
aspect	O
of	O
embedded	B-Architecture
system	I-Architecture
design	O
and	O
programming	O
.	O
</s>
<s>
A	O
sudden	O
and	O
strange	O
error	O
with	O
a	O
device	O
might	O
sometimes	O
be	O
fixed	O
by	O
removing	O
and	O
restoring	O
power	O
,	O
making	O
the	O
device	O
reset	B-General_Concept
.	O
</s>
<s>
Some	O
devices	O
,	O
such	O
as	O
portable	O
media	O
players	O
,	O
very	O
often	O
have	O
a	O
dedicated	O
reset	B-General_Concept
button	O
as	O
they	O
are	O
prone	O
to	O
freezing	O
or	O
locking	O
up	O
.	O
</s>
<s>
The	O
lack	O
of	O
a	O
proper	O
reset	B-General_Concept
ability	O
could	O
otherwise	O
possibly	O
render	O
the	O
device	O
useless	O
after	O
a	O
power	O
loss	O
or	O
malfunction	O
.	O
</s>
<s>
There	O
is	O
a	O
reset-related	O
trio	O
of	O
keys	O
,	O
somewhat	O
analogous	O
to	O
the	O
three-finger	B-Device
salute	I-Device
(	O
CTL	O
,	O
ALT	O
,	O
DEL	O
)	O
on	O
Windows	O
computers	O
,	O
on	O
Apple	O
MAC	O
computers	O
,	O
that	O
allows	O
resetting	O
.	O
</s>
