<s>
IBM	B-Device
1442	I-Device
is	O
a	O
combination	O
IBM	B-Architecture
card	I-Architecture
reader	O
and	O
card	B-Device
punch	I-Device
.	O
</s>
<s>
It	O
reads	O
and	O
punches	B-Device
80-column	O
IBM-format	O
punched	B-Architecture
cards	I-Architecture
and	O
is	O
used	O
on	O
the	O
IBM	B-Device
1440	I-Device
,	O
the	O
IBM	B-Device
1130	I-Device
,	O
the	O
IBM	B-Device
1800	I-Device
and	O
System/360	B-Application
and	O
is	O
an	O
option	O
on	O
the	O
IBM	B-Device
System/3	I-Device
.	O
</s>
<s>
Cards	O
are	O
read	O
using	O
photocells	O
,	O
illuminated	O
by	O
fiber	O
optics	O
,	O
unlike	O
the	O
IBM	B-Device
1402	I-Device
,	O
which	O
uses	O
wire	O
brushes	O
to	O
read	O
cards	O
.	O
</s>
<s>
It	O
is	O
even	O
possible	O
to	O
create	O
(	O
but	O
not	O
read	O
,	O
except	O
in	O
Binary	O
Mode	O
)	O
"	O
IBM	B-Device
Doilies	I-Device
,	O
"	O
cards	O
with	O
every	O
possible	O
hole	O
punched	O
.	O
</s>
<s>
The	O
1442	O
does	O
not	O
print	O
on	O
the	O
top	O
of	O
the	O
cards	O
;	O
it	O
just	O
punches	B-Device
what	O
characters	O
the	O
columns	O
contains	O
.	O
</s>
<s>
An	O
older	O
unit	O
record	O
machine	O
,	O
the	O
IBM	B-Device
557	I-Device
interpreter	O
,	O
can	O
be	O
used	O
off-line	O
for	O
this	O
function	O
.	O
</s>
<s>
Not	O
all	O
models	O
have	O
both	O
read	O
and	O
punch	B-Device
features	O
.	O
</s>
<s>
The	O
1442	O
Model	O
1	O
reads	O
cards	O
at	O
80	O
cards	O
per	O
minute	O
(	O
cpm	O
)	O
and	O
punches	B-Device
at	O
50	O
to	O
270cpm	O
,	O
depending	O
on	O
the	O
number	O
of	O
columns	O
punched	O
.	O
</s>
<s>
The	O
1442	O
Model	O
2	O
reads	O
cards	O
at	O
400cpm	O
and	O
punches	B-Device
from	O
91	O
to	O
360cpm	O
.	O
</s>
<s>
The	O
1442	O
Model	O
6	O
attaches	O
to	O
an	O
IBM	B-Device
System/3	I-Device
or	O
IBM	B-Device
1130	I-Device
,	O
reads	O
300cpm	O
and	O
punches	B-Device
80	B-Architecture
columns	I-Architecture
per	O
second	O
.	O
</s>
<s>
The	O
1442	O
Model	O
7	O
attaches	O
to	O
an	O
IBM	B-Device
System/3	I-Device
or	O
IBM	B-Device
1130	I-Device
,	O
reads	O
400cpm	O
and	O
punches	B-Device
180	O
columns	O
per	O
second	O
.	O
</s>
<s>
The	O
1442	O
Model	O
N1	O
attaches	O
to	O
the	O
IBM	B-Application
System/360	I-Application
and	O
IBM	B-Device
System/370	I-Device
,	O
reads	O
400	O
cards	O
per	O
minute	O
and	O
punches	B-Device
160	O
columns	O
per	O
second	O
.	O
</s>
<s>
The	O
following	O
units	O
were	O
not	O
designed	O
to	O
punch	B-Architecture
cards	I-Architecture
:	O
</s>
<s>
The	O
1442	O
Model	O
3	O
attaches	O
to	O
an	O
IBM	B-Device
1410	I-Device
or	O
IBM	B-Device
7010	I-Device
computer	O
system	O
.	O
</s>
<s>
The	O
1442	O
Model	O
4	O
attaches	O
to	O
an	O
IBM	B-Device
1440	I-Device
computer	O
system	O
.	O
</s>
<s>
The	O
1442	O
Model	O
5	O
is	O
a	O
punch-only	O
device	O
that	O
attaches	O
to	O
the	O
IBM	B-Device
2922	I-Device
Programmable	O
Terminal	O
and	O
to	O
the	O
IBM	B-Device
System/360	I-Device
Model	I-Device
20	I-Device
.	O
</s>
<s>
It	O
has	O
one	O
stacker	O
and	O
can	O
punch	B-Device
at	O
a	O
maximum	O
rate	O
of	O
160	O
columns	O
per	O
second	O
,	O
which	O
is	O
91	O
to	O
355	O
cards	O
per	O
minute	O
.	O
</s>
<s>
The	O
1442	O
Model	O
N2	O
is	O
a	O
punch-only	O
device	O
that	O
attaches	O
to	O
the	O
IBM	B-Application
System/360	I-Application
(	O
except	O
the	O
model	O
20	O
)	O
and	O
IBM	B-Device
System/370	I-Device
.	O
</s>
<s>
It	O
punches	B-Device
at	O
160	O
columns	O
per	O
second	O
.	O
</s>
<s>
By	O
combining	O
the	O
higher	O
speed	O
IBM	B-Device
2501	I-Device
card	B-Device
reader	I-Device
and	O
a	O
punch-only	O
IBM	B-Device
1442	I-Device
,	O
the	O
1442	O
's	O
limitations	O
are	O
overcome	O
:	O
</s>
