<s>
The	O
LSE/OS	B-Operating_System
kernel	B-Operating_System
was	O
a	O
research	O
kernel	B-Operating_System
designed	O
by	O
a	O
French	O
research	O
laboratory	O
named	O
Epita	O
System	O
Laboratory	O
.	O
</s>
<s>
The	O
project	O
is	O
now	O
open	B-Application
source	I-Application
.	O
</s>
<s>
The	O
main	O
goal	O
of	O
the	O
kernel	B-Operating_System
was	O
to	O
never	O
crash	B-General_Concept
prompting	O
the	O
original	O
designers	O
to	O
implement	O
it	O
as	O
a	O
modular	O
nanokernel	O
instead	O
of	O
the	O
traditional	O
monolithic	B-Operating_System
kernel	I-Operating_System
of	O
"	O
traditional	O
"	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
This	O
choice	O
was	O
good	O
because	O
it	O
allowed	O
the	O
drivers	O
and	O
services	O
code	O
to	O
be	O
moved	O
out	O
of	O
the	O
kernel	B-Operating_System
(	O
to	O
user	B-Operating_System
space	I-Operating_System
)	O
.	O
</s>
<s>
in	O
a	O
driver	O
wo	O
n't	O
crash	B-General_Concept
the	O
system	O
.	O
</s>
<s>
In	O
a	O
monolithic	B-Operating_System
kernel	I-Operating_System
this	O
is	O
impossible	O
.	O
</s>
