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that the
machine
has
completed
the input operation of the
preceding card
record,
but
has
not advanced
to the point
of
punching
operation
for
that
card.
For example, with
RECADV/CARD
FEED
set
to
MANUAL,
the
column
indicator
advances
to
00
on
completion of
the record
in
input
storage,
thus allowing return
to that
record
for
a
correction,
or,
if
there
are
no
errors,
allowing
an
operator
decision
as
to
which program
level
is
required
for the
next
card
record.
Operator
action
in
such
cases
is
given
in
the
specific
operations described
in
this
manual.
With
the
machine
in verify
mode,
the
column
indicator
does not advance
beyond
the
end
of
a
record
after
any
verify
correction has
been
accomplished,
unless the
verify
error
correction
procedures
are
followed.
If
forced
reverification
of
a
field
or record
is
required, the
column
indicator
shows
88;
if
blank
card insertion
is
required
for
punching
a
correction card, the
column
indicator
shows CC.
For
additional
details
on
the
column
indicator,
see
"Column
Indicator,"
"VER
RES," and
"VER
RES,"
and
VER CORR"
in
Section
2.
Chip
Box
and
Fuses
Card
chips
from
the
punched
cards
accumulate
in
the chip
box
located
in
the cabinet
under
the
keyboard.
When
this
box
is
removed,
the
fuses are accessible.
(Empty
the chip
box
frequently to prevent overflow.)
Prestacked
Position
A
prestacked position
is
provided
in
the card
stacker
of
all
models
having the
punch/read
unit.
In
this
position,
the
last
card processed
in
the
punch
mode
pauses before being
stacked.
When
a correction card
is
being
punched
in
the
verify
mode,
this
position
facilitates
manual
retrieval
of
cards,
such
as
an
error
card
in verify,
that
is
to
be
discarded.
An
OK-verify card does not pause before being
stacked.
Reading Board
Desk
The
desk
area provides
ample
work
space
for
the source
documents from which
the cards
are
punched.
The
key-
board
can
be
rotated
on
the
desk
to
provide the
greatest
convenience
and comfort
for
the operator.
Mainline Switch
The
mainline switch
is
located
on
the front,
right side
of
the cabinet
under
the
keyboard.
When
the
mainline switch
is
turned
on, the
IBM
129
is
ready
for
immediate
use.
Stored
information,
including
program
data
and any
accumulate
or
statistics totals,
is
lost
when
this
switch
is
turned
off.
Card
Release
Pushbutton
Pressing
the card
release
pushbutton
(see
Frontispiece)
permits removal of
a
card
at
any
station.
Normally,
a card
can be
removed
in
one
piece
if
it
is
pulled out
with
care.
If
torn card
pieces
are
caught
in either the
punch
or read
station,
they can be
pushed
out
with another
card while
this
pushbutton
is
held
down.
CAUTION
Metal
blades
should not
be used
to
clear a
card
jam.
Damage
to reading optics
may
result.
Use
only
a
blank
card,
or the
specially
designed
IBM
129
card
saw
for
jam
removal.
For
detailed card
jam
removal
procedures,
see
"Card
Jam
Removal"
in
Section
6.
Acoustic Cover
An
acoustic cover
for
the card transport
of
the
IBM
129
is
available to
further noise reduction,
in
addition to
the noise
reduction
resulting
from
the use
of
fiber
optics sensing,
electronic
storage,
and
sound-reduced
mechanical
components.
The
cover
is
similar to
the acoustic cover
for
the
IBM
29/59 machines;
it
may
be
field installed.
PROGRAM CARD CHARACTERS AND
VISIBILITY
The program
card contains
80
vertical
columns numbered
from
1
through
80. (See Figure
2.)
Each column
has 12
punching
positions:
one each
for
the
digits
to
9,
and one
each
for the
zones
0, 11,
and
12.
(Note
that
is
both
a
digit
and
a zone.)
As shown
in
Figure
2, digits are
recorded
by
punching
a
single
hole
in
the
corresponding
digit
or zero
position
of
the desired
column.
A
letter
is
a
combination of
a
zone-punch and
a
digit-punch
in
the
same
column. For example,
A
is
the
12-zone
and
digit-1
punches,
N
is
the
11-zone
and
digit-5
punches;
Z
is
the 0-zone
and
digit-9
punches.
A
special
character
is
one, two, or three holes
in
the
same
column. Punching of
two
or three holes
in
one
column
for
a
letter
or character
is
done
automatically
by
the card data
recorder.
The
card
in
Figure 2
shows,
in
addition to the
10
numerics
and 26
alphabetics,
the
11
special
characters
available in
the
48
-character
data
set,
and
the
16
special
characters
used
in
the 64-character
data
set.
Card
Visibility
During punching
or
verifying,
the
major
portion of the card
is
visible.
The
shaded bands
on
the card (Figure 2)
indicate
areas
obscured
in a specific
mode.
Numeric Punching
Punching numeric information
is
simply punching
holes
representing particular
digits
(0-9) in
predetermined rows of
the
card.
For
example,
if
a 3
and
a
7
are
punched
in
two
successive
columns,
the
number
37
is
recorded
for use
in
such
operations
as printing,
accumulating,
classifying,
and
filing
when
that
card
is
fed
through
other
IBM
machines.
Numeric
characters are those
shown on
the
upper
portion
of each
key.
General
Description
9
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