IBM 3151 User Manual page 109

Operator Messages
Area Message Meaning Action
6 CAPS LOCK
Shows that caps-lock
To exit this mode, press
mode is selected when the Caps Lock key again.
the Caps Lock key is
pressed.
COMPOSE Shows that compose-key None.
mode is selected when
the Compose Character
key is pressed. This
message disappears after
the completion of the
compose-sequence
creation.
CONTROL
Appears when the Ctrl None.
key is pressed and held
down.
SHIFT LOCK
Shows that shift-lock
To exit this mode, press
mode is selected when the Caps Lock key again
the Caps Lock key is
or press the Shift key.
pressed.
UP SHIFT Appears when the Shift None.
key is pressed and held
down.
7
(xxx,yyy)
xxx and
yyy indicate the None.
row and column
addresses of the cursor,
respectively.
Figure 4-2 (Part 6 of 6). Operator Messages
4-8
User's Guide for the Cartridge to Emulate IBM and DEC Terminals