<s>
EVE	O
(	O
introduced	O
as	O
the	O
Extensible	B-Application
VAX	I-Application
Editor	I-Application
,	O
later	O
as	O
the	O
Extensible	B-Application
Versatile	I-Application
Editor	I-Application
)	O
is	O
a	O
flexible	O
text	O
editor	O
that	O
is	O
part	O
of	O
the	O
VMS	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
.	O
</s>
<s>
EVE	O
is	O
implemented	O
by	O
using	O
the	O
Text	B-Language
Processing	I-Language
Utility	I-Language
(	O
TPU	O
)	O
.	O
</s>
<s>
The	O
Emacs	B-Application
editor	O
features	O
an	O
EVE	O
emulation	O
(	O
as	O
an	O
add-on	O
)	O
.	O
</s>
<s>
Since	O
the	O
EVE	O
editor	O
was	O
designed	O
for	O
use	O
from	O
a	O
VT100	B-Device
or	O
VT220	B-Device
terminal	O
,	O
many	O
keyboard	O
conventions	O
introduced	O
for	O
personal	O
computers	O
do	O
not	O
work	O
.	O
</s>
