<s>
The	O
Cockpit	B-Application
display	I-Application
systems	I-Application
(	O
or	O
CDS	O
)	O
provides	O
the	O
visible	O
(	O
and	O
audible	O
)	O
portion	O
of	O
the	O
Human	B-Application
Machine	I-Application
Interface	I-Application
(	O
HMI	O
)	O
by	O
which	O
aircrew	O
manage	O
the	O
modern	O
Glass	B-Device
cockpit	I-Device
and	O
thus	O
interface	O
with	O
the	O
aircraft	O
avionics	O
.	O
</s>
<s>
Prior	O
to	O
the	O
1970s	O
,	O
cockpits	O
did	O
not	O
typically	O
use	O
any	O
electronic	O
instruments	O
or	O
displays	O
(	O
see	O
Glass	B-Device
cockpit	I-Device
history	O
)	O
.	O
</s>
<s>
Glass	B-Device
cockpits	I-Device
routinely	O
include	O
high-resolution	O
multi-color	O
displays	O
(	O
often	O
LCD	B-Device
displays	I-Device
)	O
that	O
present	O
information	O
relating	O
to	O
the	O
various	O
aircraft	O
systems	O
(	O
such	O
as	O
flight	O
management	O
)	O
in	O
an	O
integrated	O
way	O
.	O
</s>
<s>
CDS	O
software	O
typically	O
uses	O
API	B-Application
code	O
to	O
integrate	O
with	O
the	O
platform	O
(	O
such	O
as	O
OpenGL	B-Application
to	O
access	O
the	O
graphics	O
drivers	B-Application
for	O
example	O
)	O
.	O
</s>
<s>
Standards	O
such	O
as	O
ARINC	B-Application
661	I-Application
specify	O
the	O
integration	O
of	O
the	O
CDS	O
at	O
the	O
software	O
level	O
with	O
the	O
aircraft	O
system	O
applications	O
(	O
called	O
User	O
Applications	O
or	O
UA	O
)	O
.	O
</s>
