<s>
Secure64	B-Protocol
Software	I-Protocol
Corporation	O
is	O
a	O
software	O
development	O
company	O
headquartered	O
in	O
Fort	O
Collins	O
,	O
CO	O
,	O
USA	O
,	O
building	O
server	O
applications	O
.	O
</s>
<s>
Secure64	B-Protocol
was	O
founded	O
in	O
2002	O
and	O
began	O
full-scale	O
development	O
in	O
2005	O
.	O
</s>
<s>
Its	O
founders	O
include	O
Bill	O
Worley	O
,	O
CTO	O
,	O
a	O
former	O
chief	O
scientist	O
of	O
Hewlett	O
Packard	O
and	O
lead	O
developer	O
of	O
PA-RISC	B-Device
and	O
PA-WideWord	O
technologies	O
.	O
</s>
<s>
Secure64	B-Protocol
has	O
filed	O
for	O
several	O
patents	O
.	O
</s>
<s>
The	O
SourceT	O
Micro	O
OS	O
executes	O
on	O
standard	O
Itanium	B-General_Concept
server	O
hardware	B-Architecture
,	O
and	O
provides	O
the	O
foundation	O
for	O
Secure64	B-Protocol
software	I-Protocol
applications	O
.	O
</s>
<s>
Secure64	B-Protocol
uses	O
the	O
term	O
"	O
micro	O
OS	O
"	O
to	O
describe	O
SourceT	O
,	O
because	O
,	O
although	O
it	O
shares	O
attributes	O
of	O
traditional	O
microkernels	B-Operating_System
and	O
monolithic	B-Operating_System
kernels	I-Operating_System
,	O
it	O
does	O
not	O
fit	O
the	O
classical	O
definition	O
of	O
either	O
.	O
</s>
<s>
Like	O
microkernels	B-Operating_System
,	O
SourceT	O
adheres	O
to	O
the	O
principles	O
that	O
minimal	O
code	O
should	O
execute	O
in	O
kernel	O
mode	O
(	O
currently	O
less	O
than	O
4,000	O
lines	O
of	O
code	O
in	O
SourceT	O
)	O
,	O
and	O
that	O
all	O
applications	O
and	O
operating	B-General_Concept
system	I-General_Concept
services	O
such	O
as	O
File	B-Application
system	I-Application
,	O
device	B-Application
drivers	I-Application
and	O
protocol	B-Protocol
stacks	I-Protocol
should	O
not	O
execute	O
in	O
kernel	O
mode	O
.	O
</s>
<s>
However	O
,	O
like	O
monolithic	B-Operating_System
kernel	I-Operating_System
architectures	O
,	O
SourceT	O
's	O
operating	B-General_Concept
system	I-General_Concept
services	O
are	O
accessed	O
through	O
system	O
service	O
calls	O
rather	O
than	O
through	O
interprocess	B-Operating_System
communication	I-Operating_System
with	O
user-mode	O
servers	O
.	O
</s>
<s>
Unlike	O
general-purpose	B-General_Concept
operating	I-General_Concept
systems	I-General_Concept
,	O
which	O
are	O
designed	O
to	O
execute	O
on	O
a	O
wide	O
variety	O
of	O
hardware	B-Architecture
platforms	O
,	O
SourceT	O
was	O
specifically	O
designed	O
to	O
take	O
advantage	O
of	O
some	O
of	O
the	O
unique	O
security	O
and	O
performance	O
features	O
of	O
the	O
Itanium	B-General_Concept
microprocessor	I-General_Concept
to	O
create	O
a	O
high	O
performance	O
,	O
highly	O
secure	O
architecture	O
.	O
</s>
<s>
These	O
unique	O
Itanium	B-General_Concept
features	O
include	O
:	O
</s>
<s>
Secure64	B-Protocol
has	O
a	O
patent	O
pending	O
for	O
the	O
queued	O
,	O
non-blocking	O
and	O
self-protecting	O
communications	O
architecture	O
used	O
by	O
SourceT	O
.	O
</s>
<s>
Designed	O
from	O
the	O
ground	O
up	O
with	O
a	O
queued	O
,	O
scalable	O
architecture	O
that	O
differs	O
significantly	O
from	O
a	O
traditional	O
Berkeley	B-Protocol
sockets	I-Protocol
architecture	O
,	O
the	O
network	B-Protocol
stack	I-Protocol
accelerates	O
network	O
I/O	O
performance	O
and	O
automatically	O
detects	O
and	O
drops	O
malformed	O
or	O
flooding	O
packets	O
,	O
such	O
as	O
those	O
received	O
as	O
the	O
victim	O
of	O
a	O
Denial-of-service	O
attacks	O
.	O
</s>
<s>
Secure64	B-Protocol
DNS	I-Protocol
products	O
are	O
security-hardened	O
commercial	O
DNS	B-Protocol
appliances	B-Architecture
,	O
deployed	O
on	O
a	O
proprietary	O
64-bit	B-Device
operating	B-General_Concept
system	I-General_Concept
running	O
on	O
Intel	B-General_Concept
Itanium	I-General_Concept
hardware	B-Architecture
.	O
</s>
