<s>
During	O
its	O
SCO	O
Forum	O
conference	O
of	O
2003	O
,	O
The	O
SCO	O
Group	O
(	O
SCO	O
)	O
showed	O
several	O
examples	O
of	O
allegedly	O
illegal	O
copying	O
of	O
copyrighted	O
code	O
into	O
Linux	B-Application
.	O
</s>
<s>
The	O
open	B-Application
source	I-Application
software	I-Application
community	O
quickly	O
debunked	O
most	O
of	O
them	O
.	O
</s>
<s>
One	O
example	O
showed	O
some	O
Unix	O
code	O
within	O
some	O
of	O
SGI	O
's	O
Linux	B-Application
contributions	O
.	O
</s>
<s>
The	O
Linux	B-Application
maintainers	O
stated	O
that	O
this	O
code	O
had	O
already	O
been	O
removed	O
from	O
Linux	B-Application
before	O
the	O
example	O
had	O
been	O
revealed	O
—	O
not	O
because	O
it	O
was	O
infringing	O
,	O
but	O
because	O
it	O
had	O
needlessly	O
duplicated	O
some	O
functions	O
already	O
present	O
in	O
Linux	B-Application
.	O
</s>
<s>
During	O
SCO	O
Forum	O
,	O
on	O
August	O
17	O
–	O
19	O
,	O
2003	O
at	O
the	O
MGM	O
Grand	O
Las	O
Vegas	O
,	O
SCO	O
publicly	O
showed	O
several	O
alleged	O
examples	O
of	O
illegal	O
copying	O
of	O
copyrighted	O
code	O
in	O
Linux	B-Application
.	O
</s>
<s>
It	O
was	O
also	O
revealed	O
that	O
the	O
code	O
had	O
already	O
been	O
removed	O
from	O
the	O
Linux	B-Application
kernel	O
,	O
because	O
it	O
duplicated	O
existing	O
functions	O
.	O
</s>
<s>
The	O
community	O
was	O
determined	O
that	O
this	O
was	O
a	O
particularly	O
bad	O
example	O
,	O
because	O
the	O
code	O
in	O
question	O
had	O
never	O
been	O
used	O
in	O
the	O
mainstream	O
distributions	O
of	O
Linux	B-Application
,	O
and	O
had	O
been	O
present	O
only	O
in	O
the	O
IA-64	B-General_Concept
version	O
.	O
</s>
<s>
The	O
relative	O
sparseness	O
of	O
worldwide	O
IA-64	B-General_Concept
installations	O
,	O
combined	O
with	O
the	O
limited	O
time	O
in	O
which	O
the	O
code	O
was	O
present	O
in	O
Linux	B-Application
,	O
makes	O
the	O
chance	O
of	O
actually	O
encountering	O
a	O
system	O
running	O
this	O
code	O
very	O
slim	O
.	O
</s>
<s>
It	O
is	O
possible	O
that	O
the	O
code	O
contributed	O
to	O
Linux	B-Application
originated	O
from	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
,	O
but	O
its	O
original	O
implementation	O
happened	O
in	O
the	O
early	O
1970s	O
.	O
</s>
<s>
There	O
are	O
no	O
substantial	O
differences	O
between	O
the	O
original	O
Unix	O
source	O
code	O
and	O
the	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
source	O
.	O
</s>
<s>
Dennis	O
Ritchie	O
,	O
one	O
of	O
the	O
creators	O
of	O
Unix	O
,	O
acknowledged	O
that	O
either	O
he	O
or	O
Ken	O
Thompson	O
wrote	O
the	O
original	O
code	O
from	O
which	O
the	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
code	O
is	O
derived	O
:	O
</s>
<s>
On	O
October	O
1	O
,	O
2003	O
,	O
SGI	O
responded	O
to	O
SCO	O
's	O
allegations	O
in	O
an	O
open	O
letter	O
to	O
the	O
Linux	B-Application
community	O
.	O
</s>
<s>
In	O
it	O
,	O
Rich	O
Altmaier	O
,	O
vice	O
president	O
of	O
software	O
,	O
claims	O
that	O
these	O
small	O
code	O
fragments	O
were	O
inadvertently	O
included	O
in	O
the	O
Linux	B-Application
kernel	O
:	O
</s>
