<s>
The	O
CDC	B-Device
1604	I-Device
was	O
a	O
48-bit	O
computer	O
designed	O
and	O
manufactured	O
by	O
Seymour	O
Cray	O
and	O
his	O
team	O
at	O
the	O
Control	O
Data	O
Corporation	O
(	O
CDC	O
)	O
.	O
</s>
<s>
The	O
1604	O
is	O
known	O
as	O
one	O
of	O
the	O
first	O
commercially	O
successful	O
transistorized	B-Device
computers	I-Device
.	O
</s>
<s>
(	O
The	O
IBM	B-Device
7090	I-Device
was	O
delivered	O
earlier	O
,	O
in	O
November	O
1959	O
.	O
)	O
</s>
<s>
A	O
12-bit	O
minicomputer	B-Architecture
,	O
called	O
the	O
CDC	B-Device
160	I-Device
,	O
was	O
often	O
used	O
as	O
an	O
I/O	O
processor	O
in	O
1604	O
systems	O
.	O
</s>
<s>
A	O
stand-alone	O
version	O
of	O
the	O
160	B-Device
called	O
the	O
CDC	B-Device
160-A	I-Device
was	O
arguably	O
the	O
first	O
minicomputer	B-Architecture
.	O
</s>
<s>
CDC	B-Device
1604	I-Device
registers	O
47	O
.	O
</s>
<s>
Memory	O
in	O
the	O
CDC	B-Device
1604	I-Device
consisted	O
of	O
32K	O
48-bit	O
words	O
of	O
magnetic	O
core	B-General_Concept
memory	I-General_Concept
with	O
a	O
cycle	O
time	O
of	O
6.4	O
microseconds	O
.	O
</s>
<s>
Those	O
familiar	O
with	O
the	O
inner	O
workings	O
of	O
the	O
software	O
could	O
often	O
hear	O
what	O
parts	O
of	O
a	O
task	O
were	O
being	O
performed	O
by	O
the	O
CDC	B-Device
1604	I-Device
;	O
as	O
a	O
debugging	O
aid	O
,	O
for	O
example	O
,	O
a	O
never-ending	O
repetitive	O
musical	O
phrase	O
indicated	O
the	O
program	O
was	O
stuck	O
in	O
a	O
loop	O
.	O
</s>
<s>
In	O
1960	O
,	O
one	O
of	O
the	O
first	O
text-mining	B-Algorithm
applications	O
,	O
Masquerade	O
,	O
was	O
written	O
for	O
the	O
Marathon	O
Oil	O
Company	O
in	O
Findlay	O
,	O
Ohio	O
.	O
</s>
<s>
Masquerade	O
was	O
a	O
text-mining	B-Algorithm
program	O
that	O
used	O
syntactic	O
structures	O
underlying	O
text	O
data	O
to	O
mask	O
out	O
words	O
and	O
phrases	O
for	O
searching	O
purposes	O
.	O
</s>
<s>
During	O
1969	O
,	O
Fleet	O
Operations	O
Control	O
Center	O
,	O
Pacific	O
(	O
FOCCPAC	O
at	O
Kunia	O
)	O
on	O
Oahu	O
in	O
Hawaii	O
launched	O
an	O
Automated	O
Control	O
Environment	O
(	O
ACE	O
)	O
using	O
a	O
cluster	O
of	O
five	O
CDC	B-Device
160As	I-Device
to	O
supervise	O
a	O
multi-tasking	O
network	O
of	O
four	O
CDC	B-Device
1604s	I-Device
.	O
</s>
<s>
The	O
smaller	O
,	O
more	O
elegant	O
,	O
single	O
silo	O
design	O
incorporated	O
two	O
redundant	O
CDC	B-Device
1604	I-Device
computer	O
systems	O
,	O
each	O
equipped	O
with	O
dual	O
cabinets	O
containing	O
four	O
200	O
bpi	O
magnetic	O
tape	O
drives	O
.	O
</s>
<s>
Model	O
displays	O
of	O
both	O
of	O
these	O
ICBM	O
ground	O
station	O
designs	O
,	O
including	O
block	O
models	O
of	O
the	O
CDC	B-Device
1604	I-Device
computers	O
,	O
may	O
be	O
viewed	O
at	O
the	O
Octave	O
Chanute	O
Aerospace	O
Museum	O
in	O
Rantoul	O
,	O
Illinois	O
.	O
</s>
<s>
JOVIAL	B-Language
was	O
used	O
as	O
the	O
main	O
programming	O
language	O
of	O
the	O
CDC	B-Device
1604	I-Device
,	O
while	O
octal	O
was	O
used	O
to	O
program	O
shared	O
services	O
supported	O
by	O
the	O
CDC	B-Device
160A	I-Device
.	O
</s>
<s>
The	O
CDC	B-Device
1604	I-Device
was	O
used	O
to	O
compose	O
Sailboat	O
and	O
other	O
artworks	O
by	O
Sam	O
Schmitt	O
and	O
Stockton	O
Gaines	O
.	O
</s>
<s>
Their	O
BESM-6	B-Device
computer	O
,	O
which	O
entered	O
production	O
in	O
1968	O
,	O
was	O
designed	O
to	O
be	O
somewhat	O
software	O
compatible	O
with	O
the	O
CDC	B-Device
1604	I-Device
,	O
but	O
it	O
ran	O
10	O
times	O
faster	O
and	O
had	O
additional	O
registers	O
.	O
</s>
<s>
The	O
CDC	O
924	O
was	O
a	O
24-bit	O
computer	O
that	O
supported	O
the	O
use	O
of	O
"	O
any	O
input-output	O
devices	O
capable	O
of	O
communicating	O
with	O
the	O
160	B-Device
and/or	O
1604	O
computer	O
,	O
"	O
and	O
its	O
six	O
independent	O
channels	O
permitted	O
3	O
simultaneous	O
input	O
operations	O
even	O
as	O
3	O
channels	O
concurrently	O
performed	O
output	O
.	O
</s>
<s>
an	O
execute	B-General_Concept
instruction	I-General_Concept
(	O
in	O
what	O
the	O
hardware	O
reference	O
manual	O
called	O
"	O
a	O
subroutine	O
of	O
a	O
single	O
instruction	O
"	O
)	O
.	O
</s>
