<s>
The	O
Philips	B-Operating_System
Velo	I-Operating_System
was	O
a	O
Handheld	B-Operating_System
PC	I-Operating_System
.	O
</s>
<s>
The	O
device	O
was	O
typical	O
of	O
the	O
HPCs	O
at	O
the	O
time	O
,	O
being	O
powered	O
by	O
two	O
AA	O
batteries	O
or	O
a	O
rechargeable	O
NiMH	B-Device
battery	I-Device
pack	O
.	O
</s>
<s>
The	O
device	O
had	O
a	O
green	O
back-lit	O
5.1-inch	O
resistive	B-Device
touchscreen	I-Device
with	O
a	O
resolution	O
of	O
480×240	O
pixels	O
at	O
two	O
bits	O
per	O
pixel	O
which	O
allowed	O
for	O
the	O
display	O
of	O
four	O
shades	O
of	O
grey	O
(	O
16	O
shades	O
with	O
Windows	B-Operating_System
CE	I-Operating_System
2.0	O
upgrade	O
)	O
.	O
</s>
<s>
It	O
originally	O
shipped	O
with	O
Windows	B-Operating_System
CE	I-Operating_System
1.0	O
,	O
with	O
a	O
ROM	B-Device
upgrade	O
to	O
Windows	B-Operating_System
CE	I-Operating_System
2.0	O
that	O
customers	O
could	O
order	O
for	O
$99.99	O
.	O
</s>
<s>
Expandability	O
was	O
via	O
two	O
internal	O
'	O
miniature	O
 '	O
expansion	O
slots	O
,	O
as	O
well	O
as	O
a	O
PCMCIA	B-Architecture
slot	O
in	O
the	O
docking	O
station	O
.	O
</s>
<s>
The	O
standard	O
model	O
included	O
4MB	O
of	O
RAM	B-Architecture
and	O
5MB	O
ROM	B-Device
.	O
</s>
<s>
An	O
8MB	O
model	O
with	O
NiMH	B-Device
battery	I-Device
pack	O
was	O
also	O
available	O
for	O
$839.99	O
with	O
a	O
free	O
upgrade	O
to	O
Windows	B-Operating_System
CE	I-Operating_System
2.0	O
when	O
it	O
was	O
available	O
.	O
</s>
<s>
Unlike	O
most	O
other	O
HPCs	O
,	O
the	O
Velo	O
1	O
included	O
a	O
built-in	O
low-power	O
software	O
modem	B-Application
,	O
where	O
most	O
other	O
devices	O
required	O
a	O
PCMCIA	B-Architecture
card	I-Architecture
modem	B-Application
.	O
</s>
<s>
PCMCIA	B-Architecture
cards	I-Architecture
quickly	O
drain	O
batteries	O
,	O
so	O
the	O
low-power	O
software	O
modem	B-Application
helped	O
eke	O
out	O
battery	O
life	O
.	O
</s>
<s>
The	O
modem	B-Application
operated	O
at	O
14.4kbit/s	O
.	O
</s>
<s>
In	O
July	O
,	O
1998	O
the	O
Velo	O
1	O
was	O
replaced	O
by	O
the	O
Velo	O
500	O
,	O
which	O
included	O
more	O
RAM	B-Architecture
and	O
ROM	B-Device
and	O
a	O
much	O
faster	O
Philips	O
PR31700	B-Device
MIPS	O
processor	O
running	O
at	O
75MHz	O
.	O
</s>
<s>
It	O
featured	O
up	O
to	O
24MiB	O
of	O
RAM	B-Architecture
as	O
well	O
as	O
an	O
upgrade	O
to	O
the	O
software	O
modem	B-Application
,	O
which	O
operated	O
at	O
28.8kbit/s	O
,	O
a	O
digital	O
voice	O
recorder	O
and	O
shipped	O
with	O
Windows	B-Operating_System
CE	I-Operating_System
2.0	O
.	O
</s>
