<s>
The	O
key	O
is	O
commonly	O
found	O
on	O
desktop	B-Device
and	O
laptop	B-Device
keyboards	B-Device
.	O
</s>
<s>
The	O
key	O
has	O
the	O
opposite	O
effect	O
of	O
the	O
End	B-Device
key	I-Device
.	O
</s>
<s>
In	O
limited-size	O
keyboards	B-Device
where	O
the	O
key	O
is	O
missing	O
the	O
same	O
functionality	O
can	O
be	O
reached	O
via	O
the	O
key	O
combination	O
of	O
.	O
</s>
<s>
,	O
is	O
used	O
on	O
some	O
full-size	O
keyboards	B-Device
instead	O
of	O
a	O
possibly	O
localized	O
text	O
label	O
.	O
</s>
<s>
In	O
modern	O
Microsoft	B-Application
Windows	I-Application
text	O
editing	O
applications	O
,	O
it	O
is	O
primarily	O
used	O
to	O
return	O
the	O
cursor	O
to	O
the	O
beginning	O
of	O
the	O
line	O
where	O
the	O
cursor	O
is	O
located	O
.	O
</s>
<s>
Only	O
full-sized	O
Apple	O
keyboards	B-Device
have	O
a	O
key	O
.	O
</s>
<s>
In	O
macOS	B-Application
single	O
line	O
text	O
fields	O
,	O
the	O
key	O
works	O
like	O
it	O
does	O
in	O
DOS	B-Device
and	O
MS	B-Application
Windows	I-Application
,	O
going	O
back	O
to	O
the	O
days	O
of	O
dumb	O
terminals	O
,	O
where	O
Home	O
moves	O
to	O
the	O
start	O
of	O
the	O
line	O
.	O
</s>
<s>
In	O
multiline	O
word	B-General_Concept
processors	I-General_Concept
,	O
when	O
the	O
key	O
is	O
pressed	O
,	O
the	O
window	O
scrolls	O
to	O
the	O
top	O
,	O
while	O
the	O
caret	O
position	O
does	O
not	O
change	O
at	O
all	O
;	O
that	O
is	O
,	O
the	O
key	O
is	O
tied	O
to	O
the	O
current	O
window	O
,	O
not	O
the	O
text	O
box	O
being	O
edited	O
.	O
</s>
<s>
On	O
Apple	O
keyboards	B-Device
that	O
do	O
not	O
have	O
a	O
Home	B-Device
key	I-Device
,	O
one	O
can	O
press	O
for	O
the	O
Home	B-Device
key	I-Device
functionality	O
described	O
above	O
.	O
</s>
<s>
In	O
Linux	B-Application
,	O
the	O
key	O
has	O
basically	O
the	O
same	O
functionality	O
as	O
it	O
does	O
on	O
Windows	O
.	O
</s>
<s>
A	O
key	O
was	O
present	O
on	O
the	O
ADM-3A	B-Device
and	O
many	O
other	O
pre-PC	O
dumb	O
terminal	O
keyboards	B-Device
.	O
</s>
