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cards.
Up
to
six
different
program
(master) cards
may
be
read into
program
storage,
and be
automatically
or
manually
selected
during keying.
5.
During
verification,
cards are read into storage
at
80
columns/second.
Key
verification
can
start
as
soon
as
the
first
manual
character has
been
read into
storage.
Immediate
correction
of any
error
is
made
in
storage,
during
verification.
6.
Correction
cards
may
be immediately punched
during
the
verification
process
by manually
inserting a
blank
card
at
the
punch
station.
7.
Storage
is
divided into
two
sections.
Input
is
that area
of
storage that
is
ready
to receive
data
from
the
keyboard
when
the operator
is
punching,
or
receives
data
from
a
card read
when
verifying,
and compares
input
against
the
keyboard
verify
keystrokes.
Output
is
that area
of
storage
that
stores
the
last
record
for
punching
or
duplicating.
8.
Machine
rate
speeds
are:
Function
Speed
Punching
Model
1
= 20
cols/sec
Models
2
and
3
=
18
cols/sec
OPERATING FEATURES
Card
skipping
Verify reading
Data
read
Program
load
Automatic
operations
in
storage:
Skip
Dup
Release
Any
backspace
Left-zero
Interval
between
cards
in
punching:
(keying continues un-
interrupted
into storage)
Interval
between
cards
in
verifying:
(keying
is
interrupted
until
the
first
manual
verify
column
is
read)
Manual
duplicating in
P/V
mode
(repetitive
action
when
DUP
is
held pressed)
80
cols/ sec
13,900
cols/sec (electronic
speed)
Models
1
and
3
-
.12
sec.
Model
2
-
(initial)
.25
sec.
Model
2
-
(serial
number
2xxxx
and
higher) .12
sec.
0.60
sec
until
column
01
is
read
Program
= 10
cols/ sec
Programs
1-6
=
10
fields/sec
Combination Keyboard
The
combination keyboard
(similar
to the
IBM
29
key-
board)
contains character keys, function keys,
and
control
switches
for
punching and
verifying.
The
keyboard
permits
keying of
data into storage
for
card
punching
or
verifying,
and
provides operator control
of
the necessary
accompany-
ing functions.
The
keyboard
can
be
switched
to either a
48-
or
64-character
set.
The
alphabetic
keys
allow use
of
the
standard typewriter
touch
system, while
the
numeric
keys
are
placed so
that a rapid three-finger
touch system
can be
used.
A
group of
dual-purpose
keys
at
the
right
serves for
numeric
keying.
(These keys
also serve for
some
alphabetic
characters.)
This permits
numeric keying with
the
right
hand from
the
normal
"home"
position
used
in
alphabetic keying.
The
keying of
a
digit
or a
letter
with any of
the
combination keys depends
on
the
shift
of
the
keyboard.
For
example,
pressing
the
4-J
key
with
the card
data
recorder
in
numeric
shift
keys
in
a 4; pressing
the
key
while
the
machine
is
in
alpha
shift
keys
in
a
J.
This
shifting
is
similar to
uppercase
or lowercase
shifting
on
a standard
typewriter,
and
may
be
controlled automatically
by
the
program,
or
manually
by
pressing either
key.
When
either
shift
key
is
manually
operated, care should
be taken
to
ensure
that the
shift
key
is
fully
pressed before data
keying
starts.
A
light
touch on
a
key
writes a character in
storage. If
the
operation
is
punching,
the input storage
saves
the
keyed
characters
until
all
80 columns of
the record
are
accounted
for,
then
the data recorder automatically
punches
the
card.
If
the
operation
is
verifying,
the input storage
compares
the
keyed
characters
with those
read
from
the previously
punched
card.
If
the
comparison
verifies
the
entire
card
as
correct,
a
coded
punch
is
entered
in
column
81 of
the
card.
If
not, the
operator can
correct
the
faulty
card
in
the input
storage unit,
and immediately punch
a corrected
card.
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