<s>
PACT	B-Application
was	O
a	O
series	O
of	O
compilers	B-Language
for	O
the	O
IBM	B-Device
701	I-Device
and	O
IBM	B-Device
704	I-Device
scientific	O
computers	O
.	O
</s>
<s>
PACT	B-Application
I	I-Application
was	O
developed	O
for	O
the	O
701	O
,	O
and	O
PACT	B-Application
IA	I-Application
for	O
the	O
704	O
.	O
</s>
<s>
The	O
emphasis	O
in	O
that	O
early	O
generation	O
of	O
compilers	B-Language
was	O
minimization	O
of	O
the	O
memory	O
footprint	O
,	O
because	O
memory	O
was	O
a	O
very	O
expensive	O
resource	O
at	O
the	O
time	O
.	O
</s>
<s>
The	O
word	O
"	O
compiler	B-Language
"	O
was	O
not	O
in	O
widespread	O
use	O
at	O
the	O
time	O
,	O
so	O
most	O
of	O
the	O
1956	O
papers	O
described	O
it	O
as	O
an	O
"	O
(	O
automatic	O
)	O
coding	O
system	O
"	O
,	O
although	O
the	O
word	O
compiler	B-Language
was	O
also	O
used	O
in	O
some	O
papers	O
.	O
</s>
