<s>
In	O
computing	O
,	O
naming	B-Protocol
schemes	I-Protocol
are	O
often	O
used	O
for	O
objects	O
connected	O
into	O
computer	B-Architecture
networks	I-Architecture
.	O
</s>
<s>
It	O
makes	O
it	O
more	O
convenient	O
to	O
refer	O
to	O
a	O
machine	O
by	O
name	O
than	O
by	O
its	O
IP	B-Protocol
address	I-Protocol
.	O
</s>
<s>
Large	O
networks	O
often	O
use	O
a	O
systematic	O
naming	B-Protocol
scheme	I-Protocol
,	O
such	O
as	O
using	O
a	O
location	O
(	O
e.g.	O
</s>
<s>
However	O
,	O
smaller	O
networks	O
will	O
frequently	O
use	O
a	O
more	O
personalized	O
naming	B-Protocol
scheme	I-Protocol
to	O
keep	O
track	O
of	O
the	O
many	O
hosts	O
.	O
</s>
<s>
Popular	O
naming	B-Protocol
schemes	I-Protocol
include	O
trees	O
,	O
planets	O
,	O
rocks	O
,	O
etc	O
.	O
</s>
<s>
Network	O
naming	O
can	O
be	O
hierarchical	O
in	O
nature	O
,	O
such	O
as	O
the	O
Internet	O
's	O
Domain	B-Protocol
Name	I-Protocol
System	I-Protocol
.	O
</s>
<s>
Indeed	O
,	O
the	O
Internet	O
employs	O
several	O
universally	O
applicable	O
naming	O
methods	O
:	O
uniform	B-Protocol
resource	I-Protocol
name	I-Protocol
(	O
URN	B-Protocol
)	O
,	O
uniform	O
resource	O
locator	O
(	O
URL	O
)	O
,	O
and	O
uniform	B-Protocol
resource	I-Protocol
identifier	I-Protocol
(	O
URI	B-Protocol
)	O
.	O
</s>
