<s>
Colossal	B-Application
Typewriter	I-Application
by	O
John	O
McCarthy	O
and	O
Roland	O
Silver	O
was	O
one	O
of	O
the	O
earliest	O
computer	O
text	B-Application
editors	I-Application
.	O
</s>
<s>
The	O
program	O
ran	O
on	O
the	O
PDP-1	B-Device
at	O
Bolt	O
,	O
Beranek	O
and	O
Newman	O
(	O
BBN	O
)	O
by	O
December	O
1960	O
.	O
</s>
<s>
About	O
this	O
time	O
,	O
both	O
authors	O
were	O
associated	O
with	O
the	O
Massachusetts	O
Institute	O
of	O
Technology	O
,	O
but	O
it	O
is	O
unclear	O
whether	O
the	O
editor	O
ran	O
on	O
the	O
TX-0	B-Device
on	O
loan	O
to	O
MIT	O
from	O
Lincoln	O
Laboratory	O
or	O
on	O
the	O
PDP-1	B-Device
donated	O
to	O
MIT	O
in	O
1961	O
by	O
Digital	O
Equipment	O
Corporation	O
.	O
</s>
<s>
A	O
"	O
Colossal	B-Application
Typewriter	I-Application
Program	O
"	O
is	O
in	O
the	O
BBN	O
Program	O
Library	O
,	O
and	O
,	O
under	O
the	O
same	O
name	O
,	O
in	O
the	O
DECUS	O
Program	O
Library	O
as	O
BBN	O
-	O
6	O
(	O
CT	O
)	O
.	O
</s>
