EXPLANATION FOR CRT/MDI PANEL
2. KEYS EFFECTIVE IN
Input key. This key is used to write the entered
data into memory.
Used when inputting the alphabet at the right bot-
tom of the key.
All the data in the key–in buffer line is cancelled
if is pressed after pressing this key.
Used to input space.
At–mark key. Pressed before writing the file
name, to display a @, when storing or calling fam-
ily programs and material files in the sub memory.