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Program
Control
12-edge
—
9-edge
The program
controls the
field
size
and
the
automatic
functions
of
skipping,
duplicating,
and
shifting
from
numeric
to alphabetic
mode, and
the
operation
of
special
features.
Each
of
the operations
performed under
control
of
the
program
is
defined
by
a specific
code recorded
in
a
program
card.
The
program
card
is
punched
with
the
program
card
codes
to
fit
the application
desired.
The
program
card
is
then
stored (read) into the
program
control
storage. Six
program
levels
(1-6),
plus a
(no-program)
level
provides
exceptional
flexibility
to
the
program
operation.
Any
of
these stored
programs
may
be
selected
by
the operator.
Program
codes
for
the basic functions
of
field
definition,
auto
skip,
auto dup,
and
alpha
are identical to
those
used
on
the
IBM
29
Card
Punch
program
level
1
(that
is,
12-1
1-0-1-punches
are
used).
Card
Hopper
The
card hopper,
which
holds approximately
500
cards,
is
located
at
the
upper
right
of the
IBM
129.
The
cards are
placed
in
the
hopper,
face
forward, with
the
9-edge
down,
and
are fed front card
first.
(See the card-edge
illustration
under "Program
Control.")
A
sliding
pressure plate assures
uniform
feeding. Press
FEED
until
two
cards are fed
down
from
the
hopper (punch mode).
Pressing
FEED
feeds
and
reads
a
single
card
(verify
mode).
Thereafter
(both modes),
card feeding
is
automatic,
under
REC
ADV/CARD FEED
control.
Punch/Read
Unit
Punching
Punching
is
performed
at this
station in
punch mode; two
cards are fed into the card bed.
The
first
card
is
positioned
at
the
punch
station
and
automatically
registered
for
punching.
The
second
card
(in
back of
the
first)
is
at
the
pre-register position.
When
column 80
of
the
first
card
passes the
punch
station, that
card
is
transported
out, the
second
card
is
registered,
and
the
next card
in
the
hopper
is
fed
down
to the card
bed
into
the
pre-register position.
Punching from one
card
to
another can
be program
controlled
in
program
control
storage,
field
by
field,
so that
only the
desired
information
is
duplicated.
A
single
card
can be
placed
in
the card
bed and
registered
at
the
punch
station
by
pressing
REG.
(See
"Inserting
Cards
Manually"
in
Section
4.)
Cards with lower
left-corner
cuts
cannot be
fed
through
the card
bed
because they
do
not
register
properly.
Reading
At
the read portion
of
the
punch/read
unit,
electronic
pulses
read
punched
cards
via
fiber optics.
These
cards
could be program
cards
read
into
storage
to provide
program
control,
or data (master) cards read
into storage
for
data
duplication. In
verify
models
this
is
the station
where
the card to
be
verified
is
read.
CAUTION
Never
use
any
unauthorized
tool to clear a card
jam from
the
punch/read
unit;
it
could
damage
the
optical
system.
Use only
a
blank
card or the
special
IBM
129
card
saw
that
is
included
with
every
machine.
Card
Stacker
The
card
stacker,
which
holds
approximately
500
cards,
is
located
at
the
upper
left
of
the
IBM
129. After each card
passes
the read
station,
it is
automatically fed
through
the
eject
unit into the
stacker.
Cards
are
stacked 12-edge to the
rear,
face up. (See the card-edge
illustration
under
"Pro-
gram
Control.")
A
pressure plate holds the cards
in position.
When
the
cards
are
removed from
the stacker,
they
are
in their
original
sequence. (See "Stacker Switch.")
A
scale
is
provided
in
the
stacker, so that
an
estimate
can
be
made
of
the
total
number
of
cards
processed before
the
cards
are
removed from
the
stacker.
(A
precise
count can be
obtained with
the
production
statistics
special feature.)
Stacker Switch
The
card
stacker contains a spring-loaded
switch
which
operates
to
inhibit
card feeding
when
the
stacker capacity
has
been
reached.
Removing
the cards
from
the stacker
returns the card
punch
operation to normal.
Power
is
not
interrupted
by
the operation
of
this
switch.
A
new
card
must be
fed before the operation
can be
continued.
Column
Indicator
The column
indicator,
located
at
the
left
of
the
keyboard
switch
plate,
shows
the
next
column
to
be keyed. During
automatic
programmed
operations, the
column
indicator
moves
so rapidly
it
may
appear
to
be
omitting columns; the
significant
aspect
to
the
operator
is
that the
column
indicator
shows
the
next
column
requiring
operator
action.
The column
indicator
normally
indicates
columns
01-80.
However,
when
operator
intervention
may
be
required,
it
also indicates
other
settings.
The 00
setting
is
used
to
show
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