<s>
The	O
Psion	B-Application
Siena	I-Application
is	O
a	O
personal	B-Application
digital	I-Application
assistant	I-Application
made	O
by	O
Psion	B-Application
PLC	I-Application
and	O
was	O
released	O
in	O
1996	O
.	O
</s>
<s>
The	O
main	O
power	O
is	O
provided	O
by	O
two	O
AAA	B-Algorithm
batteries	I-Algorithm
and	O
the	O
backup	O
power	O
by	O
one	O
cell-style	O
CR1620	O
battery	O
.	O
</s>
<s>
The	O
Siena	O
was	O
of	O
the	O
same	O
generation	O
as	O
the	O
Psion	B-Application
Series	I-Application
3	I-Application
but	O
it	O
has	O
a	O
smaller	O
size	O
liquid-crystal	B-Device
display	I-Device
(	O
LCD	B-Device
,	O
240	O
x	O
160	O
pixels	O
)	O
and	O
a	O
separate	O
numeric	O
keypad	B-Device
next	O
to	O
the	O
screen	O
.	O
</s>
<s>
The	O
Siena	O
uses	O
the	O
same	O
16-bit	B-Device
NEC	B-Device
V30H	I-Device
processor	O
as	O
its	O
predecessor	O
the	O
Series	O
3a	O
.	O
</s>
<s>
Unlike	O
the	O
Series	O
3	O
,	O
the	O
Siena	O
has	O
no	O
bay	O
for	O
removable	O
solid	O
state	O
disk	O
drives	O
;	O
however	O
,	O
an	O
external	O
drive	O
device	O
is	O
available	O
which	O
connects	O
via	O
an	O
RS-232	O
serial	B-Protocol
port	I-Protocol
.	O
</s>
<s>
More	O
connectivity	O
was	O
available	O
via	O
the	O
included	O
infrared	O
port	O
,	O
next	O
to	O
the	O
serial	B-Protocol
port	I-Protocol
.	O
</s>
<s>
The	O
character	O
,	O
Anarky	O
,	O
is	O
seen	O
tracking	O
Batman	B-General_Concept
's	O
movements	O
using	O
the	O
small	O
PDA	B-Application
.	O
</s>
