IBM 3270 Operator's Manual page 139

Typamatic (Repeat-Action) Keys
On the 3275 and 3277 keyboards, only the cursor move and space keys are
typamatic; on the 3278 keyboards, all Alphabetic, Numeric, Symbol,
Punctuation Mark, Cursor Move, Spacebar, ENTER, and PFl through PFl2
(PFl through PFlO for Data Entry Keyboards) keys are typamatic.
Keys That Operate the Same
011
3278 and 3275/3277
The following keys operate the same on 3278 keyboards as the corresponding
keys on 3275 and 3277 keyboards:
Shift ( -Q- ) keys (SHIFT on 3275/3277)
Lock
«(iJ)
key (LOCK on 3275/3277)
Numeric Shift (
-Q-)
key (NUMERIC on 3275/3277)
Numeric Lock
(@)
key (NUM LOCK on 3275/3277)
Alpha (
~
) key (ALPHA on 3275/3277)
Spacebar
New Line
(~
) key
SKIP key
Tab (
-+I )
key
Back Ta!? (
k-)
key
Horizontal Positioning ( - and - ) keys
Vertical Positioning ( t and ~
) keys
Backspace ( - ) key
CLEAR key (with ALT)
ERASE INPUT key (with ALT)
ERASE EOF key
PAl and PA2 (with ALT) on Typewriter keyboards
PAl, PA2, and PA3 on Data Entry keyboards
Delete (
I )
key (DEL on 3275/3277)
Insert
(~)
key (INS MODE on 3275/3277)
ENTER key
PF keys (with ALT for PFl-PFl2 on Typewriter keyboards)
Keys That Operate Differently on 3278 and 3275/3277
The following keys operate similarly on both the 3278 keyboards and on the
3275/3277 keyboards; therefore, only the differences are described.
Alphabet Keys
The characters on the faces of the Alphabet keys are displayed as uppercase
(capital) letters when the keys are used in conjunction with the Shift (
-Q-)
and
Lock
({!J)
keys. When the Alphabet keys are used without the Shift or Lock
keys, the letters are displayed as lowercase letters (if the A,aIA switch is set to
A,a). In addition, all the Alphabet keys have typamatic capability.
Numeric Keys
The Numeric keys on 3278 keyboards have typamatic capability.
Symbol and Punctuation Mark Keys
The Symbol and Punctuation Mark keys on 3278 keyboards have typamatic
capability.
DUP (Duplicate) Key
Pressing the DUP key displays an overscored asterisk (
~
) when the A,aIA
switch is set to A,a; when the A,aIA switch is set to A, only the asterisk is
displayed.
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