<s>
The	O
SZ	O
is	O
a	O
discontinued	O
series	O
of	O
notebook	B-Device
computers	I-Device
from	O
Sony	O
introduced	O
in	O
mid-2006	O
to	O
replace	O
the	O
S	O
series	O
.	O
</s>
<s>
They	O
fall	O
into	O
the	O
ultraportable	O
notebook	B-Device
class	O
,	O
with	O
a	O
13.3	O
"	O
16:10	O
ratio	O
1280x800	O
screen	O
,	O
and	O
a	O
weight	O
from	O
1.69kg	O
for	O
the	O
top	O
model	O
,	O
which	O
featured	O
carbon	O
fiber	O
casing	O
.	O
</s>
<s>
The	O
SZ	O
series	O
was	O
superseded	O
by	O
the	O
Z	B-Device
series	I-Device
(	O
high-end	O
,	O
13.1	O
"	O
screen	O
)	O
and	O
SR	B-Device
series	I-Device
(	O
lower	O
cost	O
,	O
13.3	O
"	O
screen	O
)	O
in	O
2008	O
.	O
</s>
