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4023
Users
OPERATION
Press
the
NUM
LOCK
key and
note
that
it
remains
depressed.
Press
the
keys
on
the Control
Function
Keyboard and
you'll
notice that
numerals
(the
same
as
those
in
the
top
row
of the
keyboard)
are displayed.
A
decimal point
(SEND-ENTER)
key
permits
a
decimal point to be entered
in
the
string
of
numerals.
Press
The
NUM
LOCK
key once
more
to
re-establish
the Control
Functions.
Numeric Keyboard
Using the Cursor Direction
controls, position
the cursor
to
any
position
on
the
display.
Now,
press
the
HOME
key and note
that the cursor
moves
instantly
to the
first
character position
in
the
first
line
—
the
home
position.
Home
Cursor
Four
control
keys perform
dual functions.
The
function
that the
key
performs depends
on whether
the
SHIFT
key
is
pressed or
not
pressed.
For
example, the
PAGE-ERASE INPUT
key
causes
an
erase
page function
to
occur
when
pressed
simultaneously with
SHIFT.
With
SHIFT,
this
key
causes erasure of
only unprotected data
on
a
formatted
display (This
key
is
explained
in
more
detail
in
the Buffer
Form
Fill-Out description).
The
other
three dual function
keys
are:
Dual Function
Keys
KEY
TYPE OF
KEY
KEY OPERATION
Press
with
SHIFT
key
INSL
Edit
to
insert a
line.
INSC
Press
without
SHIFT
key
to
insert
a
character.
Press
with
SHIFT
key
DELL
Edit
to delete
a
line.
DELC
Press
without
SHIFT
key
to delete
a
character.
Press
with
SHIFT
key
to
initiate
the
Send
SEND
Transmission
Control
Sequence.
ENTER
Press
without
SHIFT
key
to
initiate
the
Enter
Sequence.
®
1-21
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