<s>
The	O
IBM	O
Personal	O
System/2	O
Model	O
CL57	O
SX	O
(	O
stylized	O
as	O
PS/2	O
Model	O
CL57	O
SX	O
)	O
is	O
the	O
first	O
laptop	B-Device
with	O
a	O
color	O
TFT	O
screen	O
released	O
by	O
IBM	O
in	O
1992	O
.	O
</s>
<s>
It	O
was	O
released	O
a	O
few	O
months	O
before	O
the	O
introduction	O
of	O
the	O
ThinkPad	B-Operating_System
series	O
.	O
</s>
<s>
The	O
sibling	O
model	O
in	O
a	O
PS/55	B-Device
line	O
was	O
a	O
PS/55	B-Device
N27sx	O
laptop	B-Device
.	O
</s>
<s>
It	O
is	O
based	O
on	O
the	O
Micro	B-Device
Channel	I-Device
Architecture	I-Device
.	O
</s>
<s>
It	O
contains	O
a	O
386SX	O
at	O
20MHz	O
,	O
between	O
2	O
and	O
16	O
MB	O
RAM	O
,	O
a	O
10.4	O
"	O
color	O
TFT	O
,	O
weighed	O
and	O
has	O
a	O
trackball	B-Device
.	O
</s>
<s>
It	O
can	O
run	O
IBM	B-Application
OS/2	I-Application
.	O
</s>
