<s>
DEC	B-Device
GT40	I-Device
is	O
a	O
VT11	O
vector	O
graphic	O
terminal	B-General_Concept
produced	O
by	O
the	O
Digital	O
Equipment	O
Corporation	O
,	O
first	O
introduced	O
in	O
October	O
,	O
1972	O
(	O
selling	O
for	O
“	O
under	O
$	O
11,000	O
”	O
)	O
.	O
</s>
<s>
The	O
DEC	B-Device
GT40	I-Device
consists	O
of	O
:	O
</s>
<s>
Because	O
the	O
GT40	O
contained	O
a	O
PDP-11	B-Device
class	O
computer	O
,	O
the	O
terminal	B-General_Concept
could	O
also	O
serve	O
as	O
a	O
computer	O
in	O
its	O
own	O
right	O
,	O
IEEE	O
Computer	O
wrote	O
:	O
</s>
<s>
The	O
GT40	O
may	O
be	O
used	O
either	O
as	O
a	O
stand-alone	O
graphics	O
system	O
or	O
as	O
a	O
remote	O
terminal	B-General_Concept
interacting	O
with	O
various	O
types	O
of	O
host	O
computers	O
.	O
</s>
<s>
In	O
a	O
stand-alone	O
configuration	O
,	O
the	O
PDP-11/10	O
within	O
the	O
terminal	B-General_Concept
can	O
be	O
expanded	O
with	O
additional	O
memory	O
and	O
any	O
PDP-11	B-Device
family	O
peripheral	O
to	O
build	O
as	O
complex	O
a	O
system	O
as	O
necessary	O
.	O
</s>
<s>
Other	O
versions	O
,	O
using	O
different	O
PDP-11	B-Device
CPUs	O
and/or	O
video	O
processors	O
:	O
</s>
<s>
VT11	O
vector	O
graphics	O
terminal	B-General_Concept
using	O
a	O
PDP-11/10	O
.	O
</s>
<s>
VT11	O
vector	O
graphics	O
terminal	B-General_Concept
using	O
a	O
PDP-11/40	B-Device
.	O
</s>
<s>
VS60	O
vector	O
graphics	O
workstation	O
using	O
a	O
PDP-11/34a	O
and	O
VT48	O
graphics	O
processor	O
.	O
</s>
