IBM 4979 Description page 15

Keys that have two characters can display either of
them, depending on the position of the SHIFT key. The
lower character displays when the character key is pressed
and the keyboard is in the down shifted mode (the SHIFT
key not pressed). To display the upper character, hold the
SHIFT key down while pressing the character key or press
and release the LOCK key before pressing the character
key.
Remember, none of the Graphic Alphanumeric keys will
cause an interrupt to the program.
Figure 2-8. Graphic alphanumeric keys
The graphic alphanumeric keys are:
Lower shift symbol
Q
W
E
R
T
Y
U
I
o
P
A
S
D
F
G
H
J
K
L
Z
X
C
V
B
N
M
@
= at sign
%
=
percent sign
*
=
asterisk
<
=
less than sign
- = minus sign
=
slash
=
comma
=
period
2-4 GA34-Q026
Upper shift symbol
+
=
plus
=
underscore
) =
righ t paren thesis
¢
=
cent sign
\ =
reverse slash
I
=
logical OR
1
=
numeric one
2
=
numeric two
3 = numeric three
& = ampersand
blank
> =
greater than sign
=
colon
=
semicolon
"I
=
logical NOT
=
prime apostrophe
4
=
numeric four
5
=
numeric five
6
=
numeric six
blank
= question mark
" =
quotation mark
=
equal sign
=
exclamation point
( =
left parenthesis
7
=
numeric seven
# =
number sign
=
comma
$ =
dollar sign
=
period
- =
min us sign
o =
zero
8 = numeric eight
9
=
numeric nine
To familiarize yourself with the keyboard, it may be
convenient to look at the Graphic Alphanumeric keys in
groups:
• Alphabetic Characters
• Numeric Characters
• Symbol and Punctuation Characters
• Space Bar
Alphabetic Characters
All but two of the alphabetic keys (the A and Z) are dual
character keys (Figure 2-9). The alphabetic characters on
the faces of these keys are always displayed as capitals
(uppercase characters) when the key is pressed. When the
key is pressed with the keyboard in upshifted mode, the
numeric or symbol (on the upper half of the key face) is
displayed.
Figure 2-9. Alphabetic keys
Numeric Characters
With the keyboard in upshifted mode, Graphic Alpha-
numeric keys display the numeric symbol shown on their
upper half (Figure 2-10).
Figure 2-10. Numeric keys
Graphic Characters
Graphic characters are located on the upper half of most
of the alphabetic keys, and on the lower half of two of
the numeric keys. The graphic that appears on the upper
part of the key displays only with the keyboard in shifted
mode.
o