<s>
Cromwell	B-General_Concept
is	O
a	O
replacement	O
firmware	B-Application
for	O
the	O
Microsoft	O
Xbox	B-Application
gaming	O
console	O
that	O
has	O
been	O
developed	O
by	O
the	O
Xbox	B-Application
Linux	B-Application
Project	O
.	O
</s>
<s>
If	O
programmed	O
onto	O
the	O
onboard	O
flash	O
chip	O
of	O
the	O
Xbox	B-Application
or	O
a	O
modchip	O
,	O
it	O
can	O
boot	O
the	O
Linux	B-Application
operating	I-Application
system	I-Application
and	O
practically	O
convert	O
the	O
Xbox	B-Application
into	O
a	O
full	O
PC	O
.	O
</s>
<s>
It	O
is	O
unusual	O
in	O
that	O
it	O
is	O
a	O
legal	O
firmware	B-Application
(	O
because	O
it	O
does	O
not	O
use	O
any	O
of	O
Microsoft	O
's	O
code	O
to	O
function	O
)	O
and	O
was	O
developed	O
primarily	O
through	O
reverse-engineering	O
of	O
the	O
original	O
Microsoft	O
BIOS	O
and	O
its	O
boot	O
process	O
.	O
</s>
<s>
In	O
light	O
of	O
this	O
,	O
many	O
Xbox	B-Application
modchip	O
manufacturers	O
ship	O
this	O
firmware	B-Application
with	O
their	O
chips	O
to	O
avoid	O
litigation	O
and	O
copyright	O
infringement	O
claims	O
.	O
</s>
<s>
The	O
main	O
function	O
of	O
this	O
firmware	B-Application
is	O
to	O
load	O
the	O
Linux	B-Application
operating	I-Application
system	I-Application
,	O
although	O
it	O
also	O
supports	O
other	O
features	O
,	O
such	O
as	O
the	O
ability	O
to	O
reprogram	O
the	O
hardware	O
with	O
another	O
firmware	B-Application
image	O
,	O
lock	O
and	O
unlock	O
the	O
hard	O
disk	O
,	O
and	O
change	O
video	O
mode	O
(	O
PAL/NTSC	O
)	O
.	O
</s>
<s>
Unlike	O
the	O
vast	O
majority	O
of	O
Xbox	B-Application
firmware	B-Application
images	O
,	O
it	O
is	O
not	O
able	O
to	O
load	O
Xbox	B-Application
games	O
(	O
either	O
original	O
or	O
otherwise	O
)	O
.	O
</s>
<s>
This	O
is	O
because	O
the	O
original	O
Microsoft	O
firmware	B-Application
image	O
contains	O
the	O
kernel	O
of	O
the	O
Xbox	B-Application
operating	O
system	O
(	O
widely	O
believed	O
to	O
be	O
a	O
stripped-down	O
Windows	B-Application
2000	I-Application
derivative	O
)	O
-	O
that	O
is	O
,	O
the	O
firmware	B-Application
is	O
the	O
operating	O
system	O
.	O
</s>
<s>
As	O
Cromwell	B-General_Concept
does	O
not	O
contain	O
this	O
,	O
it	O
is	O
not	O
able	O
to	O
allow	O
games	O
to	O
load	O
and	O
function	O
.	O
</s>
<s>
Cromwell	B-General_Concept
includes	O
code	O
from	O
other	O
open	O
source	O
projects	O
,	O
but	O
combines	O
them	O
in	O
a	O
unique	O
way	O
.	O
</s>
<s>
This	O
is	O
a	O
list	O
of	O
components	O
that	O
can	O
be	O
found	O
in	O
Cromwell	B-General_Concept
:	O
</s>
<s>
a	O
Linux	B-Application
2.6-derived	O
USB	O
stack	O
in	O
a	O
standalone	O
version	O
(	O
i.e.	O
</s>
<s>
The	O
standalone	O
version	O
of	O
the	O
Linux	B-Application
USB	O
stack	O
from	O
Cromwell	B-General_Concept
has	O
been	O
ported	O
to	O
the	O
ReactOS	B-Application
operating	O
system	O
.	O
</s>
