<s>
The	O
Archos	B-Application
PMA400	I-Application
is	O
a	O
personal	B-Application
digital	I-Application
assistant	I-Application
(	O
PDA	B-Application
)	O
from	O
Archos	O
,	O
with	O
a	O
hard	B-Device
disk	I-Device
drive	I-Device
and	O
audio	O
and	O
video	O
playback	O
and	O
recording	O
capabilities	O
,	O
so	O
it	O
also	O
functions	O
as	O
a	O
portable	O
media	O
player	O
(	O
PMP	O
)	O
.	O
</s>
<s>
The	O
PMA400	B-Application
was	O
the	O
most	O
expensive	O
within	O
the	O
line	O
of	O
products	O
that	O
they	O
supplied	O
.	O
</s>
<s>
Based	O
on	O
the	O
Linux	B-Application
Qtopia	B-Language
Embedded	O
operating	O
system	O
,	O
the	O
device	O
is	O
more	O
like	O
a	O
personal	B-Application
digital	I-Application
assistant	I-Application
than	O
a	O
normal	O
media	O
player	O
.	O
</s>
<s>
The	O
PMA400	B-Application
features	O
the	O
following	O
:	O
</s>
<s>
Most	O
Qtopia	B-Language
apps	O
that	O
work	O
out	O
of	O
the	O
box	O
are	O
available	O
.	O
</s>
<s>
Though	O
it	O
remains	O
Archos	O
's	O
only	O
dedicated	O
PDA	B-Application
,	O
some	O
of	O
its	O
features	O
can	O
be	O
seen	O
on	O
the	O
later	O
604WiFi	O
including	O
touchscreen	B-Device
and	O
web	O
browsing	O
.	O
</s>
<s>
The	O
extension	O
originally	O
developed	O
for	O
the	O
AV	O
and	O
Gmini	O
series	O
is	O
available	O
enabling	O
the	O
user	O
to	O
run	O
NES	B-Language
,	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
emulators	O
and	O
Doom	B-Application
interpreter	O
.	O
</s>
