<s>
A	O
personal	O
web	B-Application
server	I-Application
(	O
PWS	O
)	O
is	O
system	O
of	O
hardware	O
and	O
software	O
that	O
is	O
designed	O
to	O
create	O
and	O
manage	O
a	O
web	B-Application
server	I-Application
on	O
a	O
desktop	O
computer	O
.	O
</s>
<s>
Therefore	O
,	O
a	O
PWS	O
supports	O
the	O
more	O
common	O
server-side	O
programming	O
approaches	O
that	O
can	O
be	O
used	O
with	O
production	O
web	B-Application
servers	I-Application
.	O
</s>
<s>
A	O
personal	B-Protocol
web	I-Protocol
server	I-Protocol
,	O
or	O
personal	B-Protocol
server	I-Protocol
in	O
short	O
,	O
allows	O
users	O
to	O
store	O
,	O
selectively	O
share	O
,	O
or	O
publish	O
information	O
on	O
the	O
web	O
or	O
on	O
a	O
home	O
network	O
.	O
</s>
<s>
Unlike	O
other	O
types	O
of	O
web	B-Application
servers	I-Application
,	O
a	O
personal	B-Protocol
web	I-Protocol
server	I-Protocol
is	O
owned	O
or	O
controlled	O
by	O
an	O
individual	O
,	O
and	O
operated	O
for	O
the	O
individual	O
's	O
needs	O
,	O
instead	O
of	O
by	O
a	O
company	O
.	O
</s>
<s>
A	O
personal	B-Protocol
web	I-Protocol
server	I-Protocol
is	O
conceptually	O
the	O
opposite	O
of	O
a	O
web	B-Application
server	I-Application
,	O
or	O
website	O
,	O
operated	O
by	O
third	O
parties	O
,	O
in	O
a	O
software	B-Architecture
as	I-Architecture
a	I-Architecture
service	I-Architecture
(	O
SaaS	B-Architecture
)	O
or	O
cloud	B-Architecture
model	O
.	O
</s>
<s>
Autonomy	O
:	O
the	O
owner	O
of	O
the	O
personal	B-Protocol
server	I-Protocol
decides	O
which	O
applications	O
to	O
run	O
on	O
the	O
server	O
,	O
whom	O
to	O
allow	O
access	O
to	O
,	O
when	O
to	O
upgrade	O
,	O
etc	O
.	O
</s>
<s>
Higher	O
power	O
consumption	O
:	O
the	O
power	O
consumed	O
per	O
user	O
is	O
higher	O
,	O
on	O
average	O
,	O
than	O
in	O
a	O
model	O
where	O
many	O
users	O
use	O
the	O
same	O
server	O
,	O
such	O
as	O
in	O
the	O
SaaS/cloud	O
model	O
.	O
</s>
