Shift; Lock; Alphabet, Symbol, And Punctuation Mark; Field Mark - IBM 3180 1 User Manual

Some keys have printing on the front. When an Ait key is
pressed and held down and then a key with printing on
the front is pressed, the system performs the action
shown on the front of the key rather than the action
shown on the top. Both Alt keys perfornn the same
function.
Shift
When either the left or the right shift key is pressed, the
upper symbols shown on the faces of the dual character
keys will display when they are pressed.
Lock
Pressing the Lock key locks the keyboard in a shifted
(uppercase) condition. When the Lock key is used, you
do not have to hold the shift key down, and both hands
are free for typing. Press either shift key when you are
ready to return the keyboard to the unshifted (lowercase)
condition. This releases the lock.
Alphabet, Symbol, and Punctuation Mark
The uppercase characters, symbols, and punctuation
marks on the top portion of the keys are displayed when
the keys are used in conjunction with the shift and lock
keys. When the keys are used without the shift and lock
keys, lower case letters, symbols, and punctuation marks
on the lower portion of the keys are displayed. All these
keys are typamatic if held down.
Pressing the Dup key, wiih a shift key he!d down, displays
an overscore asterisk ( * ) when the A,a (Dual
Case/Mono Case) key is set to A.a. When the A.a key is
set to A, only the asterisk is displayed. Also the cursor
advances to the first character location of the next input
field.
Field Mark
Pressing the Field Mark key, with a shift key held down,
displays an overscored semicolon ( J ) when the A,a
key is set to A.a. When the A,a key is set to A, only the
semicolon is displayed. The Field Mark key is used when
operating with an unformatted display to indicate the end
of a field to the program.
PA1 and PA2
PA1 and PA2 are program access keys which provide a
means of signaling the program or communication with it.
While your display station is signaling the program, the X
(do not enter-time) message appears in the operator
information area, disabling your keyboard. Most
programs, when replying to these keys, turn off the time
message. However, this depends on the program. The
host program determines how these keys are used. !f you
are not familiar with the use of the PA1 and PA2 keys,
refer to the appropriate user's program guide.
Chapter 2. Learning to Operate the Display Station 35