<s>
INTEGRITY	O
and	O
INTEGRITY-178B	B-Operating_System
are	O
real-time	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
(	O
RTOSes	O
)	O
produced	O
and	O
marketed	O
by	O
Green	O
Hills	O
Software	O
.	O
</s>
<s>
INTEGRITY	O
is	O
POSIX-certified	O
and	O
intended	O
for	O
use	O
in	O
embedded	B-Architecture
systems	I-Architecture
of	O
32-bits	O
or	O
64-bits	B-Device
.	O
</s>
<s>
Supported	O
computer	B-General_Concept
architectures	I-General_Concept
include	O
variants	O
of	O
:	O
ARM	B-Architecture
,	O
Blackfin	B-General_Concept
,	O
ColdFire	B-Device
,	O
MIPS	B-Device
,	O
PowerPC	B-Architecture
,	O
XScale	B-Application
,	O
and	O
x86	B-Operating_System
.	O
</s>
<s>
INTEGRITY	O
is	O
supported	O
by	O
popular	O
SSL/TLS	B-Protocol
libraries	O
such	O
as	O
wolfSSL	B-Protocol
.	O
</s>
<s>
INTEGRITY-178B	B-Operating_System
is	O
the	O
DO-178B	O
–	O
compliant	O
version	O
of	O
INTEGRITY	O
.	O
</s>
<s>
It	O
is	O
used	O
in	O
several	O
military	O
jets	O
such	O
as	O
the	O
B-2	O
,	O
F-16	O
,	O
F-22	B-Application
,	O
and	O
F-35	O
,	O
and	O
the	O
commercial	O
aircraft	O
Airbus	O
A380	O
.	O
</s>
<s>
Its	O
kernel	B-Operating_System
design	I-Operating_System
guarantees	O
bounded	O
computing	O
times	O
by	O
eliminating	O
features	O
such	O
as	O
dynamic	B-General_Concept
memory	I-General_Concept
allocation	I-General_Concept
.	O
</s>
<s>
The	O
Target	O
of	O
Evaluation	O
(	O
TOE	O
)	O
Architecture	O
in	O
the	O
Security	O
Target	O
for	O
the	O
evaluation	O
excludes	O
components	O
such	O
as	O
those	O
for	O
file	B-Application
system	I-Application
and	O
networking	B-Architecture
,	O
from	O
the	O
definition	O
of	O
the	O
TOE	O
,	O
focusing	O
almost	O
solely	O
on	O
the	O
core	O
kernel	B-Operating_System
.	O
</s>
<s>
Other	O
operating	O
systems	O
,	O
such	O
as	O
Windows	B-Application
,	O
macOS	B-Application
or	O
Linux	B-Application
,	O
though	O
evaluated	O
at	O
lower	O
levels	O
of	O
assurance	O
,	O
generally	O
include	O
these	O
abilities	O
within	O
their	O
TOE	O
.	O
</s>
