<s>
The	O
editor	O
could	O
be	O
run	O
on	O
the	O
CDC	B-Device
6000	I-Device
series	I-Device
,	O
and	O
later	O
Cyber-70	B-Device
and	I-Device
-170	I-Device
series	I-Device
operator	O
consoles	O
.	O
</s>
<s>
According	O
to	O
source	O
code	B-Application
listings	I-Application
of	O
the	O
SCOPE	B-Operating_System
version	O
of	O
O26	B-Application
,	O
it	O
was	O
written	O
in	O
1967	O
by	O
CDC	O
programmers	O
Greg	O
Mansfield	O
and	O
David	O
Cahlander	O
.	O
</s>
<s>
An	O
independently	O
developed	O
full	O
screen	O
editor	O
was	O
written	O
in	O
1967	O
by	O
Edgar	O
T	O
.	O
Irons	O
and	O
Franz	O
M	O
.	O
Djorup	O
at	O
the	O
Institute	O
for	O
Defense	O
Analyses	O
to	O
run	O
on	O
a	O
CDC	B-Device
6600	I-Device
.	O
</s>
<s>
The	O
IDA	O
editor	O
(	O
name	O
not	O
given	O
in	O
the	O
paper	O
)	O
ran	O
on	O
IDA	O
's	O
homegrown	O
time-sharing	B-General_Concept
system	I-General_Concept
known	O
as	O
IDA-CRD	O
.	O
</s>
