IBM 1130 User Manual page 447

Section
Subsections Page
45 20
I
00 01
CARD READERS AND PUNCHES
Five card readers and/or punches are available for
attachment to the 1130 system.
The IBM 1142 Card Read Punch, Model 6, reads
and punches cards, with all input from a single
hopper.
It
reads at a rated speed of 300 cards per
minute, and punches at 80 card columns per second.
The IBM 1442 Card Read Punch, Model 7, is
similar to the Model 6, but faster, reading at 400
cards per minute and punching at 160 columns per
second.
The IBM 1442 Card Punch, Model 5, cannot read
cards; it can only punch. Its punching speed is 160
columns per second.
The IBM 2501 Card Reader, Model A1, will read
cards at a rated maximum speed of 600 per minute.
It
is not able to punch cards.
The IBM 2501 Card Reader, Model A2, is simi-
lar to the A1, but operates at 1000 cards per minute
(maximum).
Disregarding speeds for the moment, there are
four combinations of card readers and/or punches
for the 1130:
IBM 1442 Card Read Punch
1. No card readers or card punches
2. An IBM 1442 Card Read Punch
3. An IBM 2501 Card Reader and the IBM 1442
Card Punch, Model 5
4. An IBM 2501 Card Reader and an IBM 1442
Card Read Punch
Aside from speed, the main difference between
combinations is capability - the number of card
paths available.
Configuration 2 (1442 Model 6 or 7) gives the
user only one card path. This means that cards to
be read and cards to be punched must both be placed
in the same input hopper in the proper order.
Configuration 3 (2501 and 1442 Model 5) has sep-
arate paths for reading and punching, which simpli-
fies programming and operating in certain types of
applications.
Configuration 4 (2501 and 1442 Model 6 or 7) also
has two card paths, differing from configuration 3
in that one path can both read and punch. In cer-
tain applications this can be very useful. For ex-
ample, you could put a master card deck in one
reader and a detail deck in the other reader, elimi-
nating the need to collate (merge) the two together.