<s>
The	O
GM-NAA	B-Application
I/O	I-Application
input/output	B-General_Concept
system	O
of	O
General	O
Motors	O
and	O
North	O
American	O
Aviation	O
was	O
the	O
first	O
operating	B-General_Concept
system	I-General_Concept
for	O
the	O
IBM	B-Device
704	I-Device
computer	O
.	O
</s>
<s>
It	O
was	O
created	O
in	O
1956	O
by	O
Robert	O
L	O
.	O
Patrick	O
of	O
General	B-Operating_System
Motors	I-Operating_System
Research	I-Operating_System
and	O
Owen	O
Mock	O
of	O
North	O
American	O
Aviation	O
.	O
</s>
<s>
It	O
was	O
based	O
on	O
a	O
system	O
monitor	O
created	O
in	O
1955	O
by	O
programmers	O
of	O
General	O
Motors	O
for	O
its	O
IBM	B-Device
701	I-Device
.	O
</s>
<s>
The	O
main	O
function	O
of	O
GM-NAA	B-Application
I/O	I-Application
was	O
to	O
automatically	O
execute	O
a	O
new	O
program	O
once	O
the	O
one	O
that	O
was	O
being	O
executed	O
had	O
finished	O
(	O
batch	B-General_Concept
processing	I-General_Concept
)	O
.	O
</s>
<s>
It	O
was	O
formed	O
of	O
shared	O
routines	O
to	O
the	O
programs	O
that	O
provided	O
common	O
access	O
to	O
the	O
input/output	B-General_Concept
devices	I-General_Concept
.	O
</s>
