<s>
The	O
Jupiter	B-Device
project	I-Device
was	O
to	O
be	O
a	O
new	O
high-end	O
model	O
of	O
Digital	O
Equipment	O
Corporation	O
(	O
DEC	O
)	O
'	O
s	O
PDP-10	B-Device
mainframe	O
computers	O
.	O
</s>
<s>
This	O
project	O
was	O
cancelled	O
in	O
1983	O
,	O
as	O
the	O
PDP-10	B-Device
was	O
increasingly	O
eclipsed	O
by	O
the	O
VAX	B-Device
supermini	O
machines	O
(	O
descendants	O
of	O
the	O
PDP-11	B-Device
)	O
.	O
</s>
<s>
DEC	O
recognized	O
then	O
that	O
the	O
PDP-10	B-Device
and	O
VAX	B-Device
product	O
lines	O
were	O
competing	O
with	O
each	O
other	O
and	O
decided	O
to	O
concentrate	O
its	O
software	O
development	O
effort	O
on	O
the	O
more	O
profitable	O
VAX	B-Device
.	O
</s>
<s>
The	O
PDP-10	B-Device
was	O
finally	O
dropped	O
from	O
DEC	O
's	O
line	O
in	O
1983	O
,	O
following	O
the	O
failure	O
of	O
the	O
Jupiter	B-Device
Project	I-Device
at	O
DEC	O
to	O
build	O
a	O
viable	O
new	O
model	O
.	O
</s>
