<s>
Appendix	B-Device
H	I-Device
is	O
the	O
name	O
of	O
an	O
infamous	O
appendix	O
in	O
Pentium	O
Processor	O
Family	O
Developer	O
's	O
Manual	O
,	O
Volume	O
3	O
.	O
</s>
<s>
This	O
NDAed	O
documentation	O
described	O
various	O
new	O
features	O
introduced	O
in	O
the	O
Pentium	O
processor	O
,	O
notably	O
Virtual	O
Mode	O
Extensions	O
(	O
VME	B-Device
)	O
and	O
4MB	O
paging	B-Architecture
.	O
</s>
<s>
VME	B-Device
added	O
an	O
additional	O
feature	O
to	O
the	O
existing	O
virtual	B-Application
8086	I-Application
mode	I-Application
(	O
which	O
was	O
introduced	O
with	O
the	O
80386	B-General_Concept
processor	O
)	O
,	O
and	O
included	O
optimized	O
handling	O
and	O
delivery	O
of	O
interrupts	O
to	O
and	O
from	O
virtual	O
machines	O
by	O
reducing	O
the	O
number	O
of	O
traps	O
required	O
.	O
</s>
<s>
VME	B-Device
should	O
not	O
be	O
confused	O
with	O
the	O
later	O
Intel	O
VT	O
virtualization	O
technology	O
aiming	O
at	O
full	O
virtualization	O
of	O
the	O
CPU	O
,	O
rather	O
than	O
just	O
the	O
8086	O
mode	O
.	O
</s>
<s>
From	O
the	O
Pentium	O
Pro	O
,	O
the	O
information	O
in	O
Appendix	B-Device
H	I-Device
was	O
moved	O
to	O
the	O
main	O
documentation	O
chapters	O
,	O
making	O
the	O
features	O
publicly	O
documented	O
.	O
</s>
