<s>
Acer	B-Device
Extensa	I-Device
series	O
is	O
an	O
affordable	O
line	O
of	O
Acer	O
laptops	B-Device
designed	O
for	O
office	O
and	O
business	O
users	O
.	O
</s>
<s>
Its	O
competitors	O
include	O
the	O
Dell	B-Operating_System
Vostro	I-Operating_System
,	O
and	O
HP	O
ProBook	O
lines	O
and	O
low-end	O
Lenovo	B-Operating_System
ThinkPad	I-Operating_System
laptops	B-Device
.	O
</s>
<s>
The	O
Extensa	B-Device
series	I-Device
includes	O
several	O
notebooks	B-Device
with	O
different	O
design	O
,	O
performance	O
and	O
functionality	O
.	O
</s>
<s>
The	O
Extensa	B-Device
name	O
had	O
been	O
used	O
by	O
Texas	O
Instruments	O
,	O
which	O
sold	O
its	O
mobile	O
computing	O
division	O
to	O
Acer	O
in	O
1997	O
.	O
</s>
<s>
Acer	B-Device
Extensa	I-Device
15	O
—	O
15.6	O
"	O
model	O
line	O
with	O
plastic	O
case	O
;	O
2020	O
model	O
-	O
Intel	O
Core	O
i3/i5	O
U	O
series	O
,	O
1920x1080	O
TN	O
screen	O
,	O
buttonless	O
touchpad	O
.	O
</s>
