<s>
Barrelfish	B-Operating_System
is	O
an	O
experimental	O
computer	B-General_Concept
operating	I-General_Concept
system	I-General_Concept
built	O
by	O
ETH	O
Zurich	O
with	O
the	O
assistance	O
of	O
Microsoft	O
Research	O
in	O
Cambridge	O
.	O
</s>
<s>
It	O
is	O
an	O
experimental	O
operating	B-General_Concept
system	I-General_Concept
designed	O
from	O
the	O
ground	O
up	O
for	O
scalability	O
for	O
computers	O
built	O
with	O
multi-core	B-Architecture
processors	I-Architecture
with	O
the	O
goal	O
of	O
reducing	O
the	O
compounding	O
decrease	O
in	O
benefit	O
as	O
more	O
CPUs	O
are	O
used	O
in	O
a	O
computer	O
via	O
putting	O
low	O
level	O
hardware	O
information	O
in	O
a	O
database	O
,	O
removing	O
the	O
necessity	O
for	O
driver	B-Application
software	I-Application
.	O
</s>
<s>
Excluding	O
some	O
third-party	O
libraries	O
,	O
which	O
are	O
covered	O
by	O
various	O
BSD-like	O
open	B-License
source	I-License
licenses	O
,	O
Barrelfish	B-Operating_System
is	O
released	O
under	O
the	B-License
MIT	I-License
license	I-License
.	O
</s>
<s>
While	O
originally	O
being	O
developed	O
in	O
collaboration	O
with	O
Microsoft	O
Research	O
,	O
it	O
is	O
now	O
partly	O
supported	O
by	O
Hewlett	O
Packard	O
Enterprise	O
Labs	O
,	O
Huawei	O
,	O
Cisco	O
,	O
Oracle	B-Application
,	O
and	O
VMware	O
.	O
</s>
