<s>
The	O
ST	B-Device
BOOK	I-Device
is	O
a	O
subnotebook	B-Device
released	O
in	O
1991	O
by	O
Atari	O
Corporation	O
.	O
</s>
<s>
The	O
ST	B-Device
BOOK	I-Device
is	O
more	O
portable	O
than	O
the	O
previous	O
Atari	O
portable	O
,	O
the	O
STacy	B-Device
,	O
but	O
it	O
sacrifices	O
several	O
features	O
in	O
order	O
to	O
achieve	O
this	O
:	O
notably	O
the	O
backlight	O
,	O
and	O
internal	O
floppy	B-Device
disc	I-Device
drive	I-Device
.	O
</s>
<s>
The	O
ST	B-Device
BOOK	I-Device
is	O
shipped	O
with	O
a	O
modified	O
version	O
of	O
TOS	B-Application
2.06	O
.	O
</s>
