<s>
EXEC	B-Application
II	I-Application
is	O
a	O
discontinued	O
operating	B-General_Concept
system	I-General_Concept
developed	O
for	O
the	O
UNIVAC	O
1107	O
by	O
Computer	O
Sciences	O
Corporation	O
(	O
CSC	O
)	O
while	O
under	O
contract	O
to	O
UNIVAC	O
to	O
develop	O
the	O
machine	O
's	O
COBOL	B-Application
compiler	B-Language
.	O
</s>
<s>
They	O
developed	O
EXEC	B-Application
II	I-Application
because	O
Univac	O
's	O
EXEC	B-Application
I	I-Application
operating	B-General_Concept
system	I-General_Concept
development	O
was	O
late	O
.	O
</s>
<s>
Because	O
of	O
this	O
the	O
COBOL	B-Application
compiler	B-Language
was	O
actually	O
designed	O
to	O
run	O
under	O
EXEC	B-Application
II	I-Application
,	O
not	O
EXEC	B-Application
I	I-Application
as	O
specified	O
in	O
the	O
original	O
contract	O
.	O
</s>
<s>
EXEC	B-Application
II	I-Application
is	O
a	O
batch	B-General_Concept
processing	I-General_Concept
operating	B-General_Concept
system	I-General_Concept
that	O
supports	O
a	O
single	O
job	B-Application
stream	I-Application
with	O
concurrent	O
spooling	B-Device
.	O
</s>
