<s>
A	O
multifunction	B-Device
display	I-Device
(	O
MFD	O
)	O
is	O
a	O
small-screen	O
(	O
CRT	B-Device
or	O
LCD	B-Device
)	O
surrounded	O
by	O
multiple	O
soft	B-General_Concept
keys	I-General_Concept
(	O
configurable	O
buttons	O
)	O
that	O
can	O
be	O
used	O
to	O
display	O
information	O
to	O
the	O
user	O
in	O
numerous	O
configurable	O
ways	O
.	O
</s>
<s>
Often	O
,	O
an	O
MFD	O
will	O
be	O
used	O
in	O
concert	O
with	O
a	O
primary	O
flight	O
display	O
(	O
PFD	O
)	O
,	O
and	O
forms	O
a	O
component	O
of	O
a	O
glass	B-Device
cockpit	I-Device
.	O
</s>
<s>
Many	O
MFDs	O
allow	O
pilots	O
to	O
display	O
their	O
navigation	O
route	O
,	O
moving	O
map	O
,	O
weather	O
radar	O
,	O
NEXRAD	B-Algorithm
,	O
ground	O
proximity	O
warning	O
system	O
,	O
traffic	O
collision	O
avoidance	O
system	O
,	O
and	O
airport	O
information	O
all	O
on	O
the	O
same	O
screen	O
.	O
</s>
<s>
MFDs	O
were	O
added	O
to	O
the	O
Space	O
Shuttle	O
(	O
as	O
the	O
glass	B-Device
cockpit	I-Device
)	O
starting	O
in	O
1998	O
,	O
replacing	O
the	O
analog	O
instruments	O
and	O
CRTs	O
.	O
</s>
<s>
The	O
information	O
being	O
displayed	O
is	O
similar	O
,	O
and	O
the	O
glass	B-Device
cockpit	I-Device
was	O
first	O
flown	O
on	O
the	O
STS-101	O
mission	O
.	O
</s>
