<s>
The	O
Compaq	B-Operating_System
C	I-Operating_System
series	I-Operating_System
was	O
a	O
series	O
of	O
Handheld	B-Operating_System
PCs	I-Operating_System
running	O
on	O
Windows	B-Operating_System
CE	I-Operating_System
2.0	I-Operating_System
,	O
manufactured	O
by	O
Compaq	O
from	O
1998	O
.	O
</s>
<s>
The	O
C	O
series	O
replaced	O
the	O
Aero	B-Operating_System
line	I-Operating_System
of	I-Operating_System
handheld	I-Operating_System
PCs	I-Operating_System
.	O
</s>
<s>
It	O
was	O
succeeded	O
,	O
as	O
with	O
other	O
HPCs	O
manufactured	O
by	O
Compaq	O
and	O
HP	O
,	O
by	O
the	O
iPAQ	B-Application
line	O
of	O
Pocket	B-Device
PCs	I-Device
.	O
</s>
<s>
The	O
C	O
series	O
featured	O
an	O
integrated	O
33.6kbit/s	O
modem	B-Application
.	O
</s>
<s>
An	O
upgrade	O
to	O
Windows	B-Operating_System
CE	I-Operating_System
2.11	O
could	O
be	O
purchased	O
from	O
Compaq	O
for	O
US$109	O
.	O
</s>
