Indicator_Alpha

Keyboard Mode Alpha:

Inv

Keyboard in inverse move

Hyp

Keyboard in hyperbolic mode - also used for password entry

K

Constant calculation mode

Hlt

halted programm - also used for debugger

Run

Mode1, interactive or program run mode

Wrt

Mode2, write programms

Pcl

Mode3, clear, save, load programs.

Deg

Mode4, Tr

Rad

Mode5

Gra

Mode6

Keyboard_Alpha

Alpha entry and display mofe

The mode show that the Alpha Keyboard mode is active. The indicator also blinks twice in that 2 sec pause when displaying an string >11 characters.