<s>
A	O
personal	B-Protocol
wiki	I-Protocol
is	O
wiki	B-Protocol
software	I-Protocol
that	O
allows	O
individual	O
users	O
to	O
organize	O
information	O
on	O
their	O
desktop	O
or	O
mobile	O
computing	O
devices	O
in	O
a	O
manner	O
similar	O
to	O
community	O
wikis	B-Protocol
,	O
but	O
without	O
collaborative	B-Application
software	I-Application
or	O
multiple	O
users	O
.	O
</s>
<s>
Personal	B-Protocol
wiki	I-Protocol
software	O
can	O
be	O
broadly	O
divided	O
into	O
two	O
categories	O
:	O
</s>
<s>
Some	O
personal	B-Protocol
wikis	I-Protocol
are	O
public	O
,	O
but	O
password-protected	O
,	O
and	O
run	O
on	O
dedicated	O
web	B-Application
servers	I-Application
or	O
are	O
hosted	O
by	O
third	O
parties	O
.	O
</s>
<s>
Multi-user	O
wiki	B-Protocol
applications	I-Protocol
with	O
personal	O
editions	O
include	O
:	O
</s>
<s>
There	O
are	O
also	O
wiki	B-Protocol
applications	I-Protocol
designed	O
for	O
personal	O
use	O
,	O
apps	O
for	O
mobile	O
use	O
,	O
and	O
apps	O
for	O
use	O
from	O
USB	O
flash	O
drives	O
.	O
</s>
<s>
They	O
often	O
include	O
more	O
features	O
than	O
traditional	O
wikis	B-Protocol
,	O
including	O
:	O
</s>
<s>
Obsidian	B-Protocol
is	O
a	O
knowledge	O
base	O
and	O
note-taking	O
software	O
application	O
that	O
operates	O
on	O
Markdown	O
files	O
.	O
</s>
