NitrOS-9 can display both upper- and lowercase letters. However, you can tell it you want to use only uppercase. To do this, type:  

NitrOS-9 can display both upper- and lowercase letters. However, you can tell it you want to use only uppercase. To do this, type:  

tmode upc=1 ENTER

tmode upc=1 ENTER

If you do this, you cannot type lowercase letters, and the system displays all uppercase letters. To switch back to both uppercase and lowercase, type:  

If you do this, you cannot type lowercase letters, and the system displays all uppercase letters. To switch back to both uppercase and lowercase, type:  

tmode upc=0 ENTER

tmode upc=0 ENTER

Even when you are in the upper-/lowercase mode, you can switch to typing all uppercase by pressing CTRL 0. Everything you type is now uppercase, but the computer can display both upper- and lowercase. Press CTRL 0 to switch back to upper-/lowercase.  

Even when you are in the upper-/lowercase mode, you can switch to typing all uppercase by pressing CTRL 0. Everything you type is now uppercase, but the computer can display both upper- and lowercase. Press CTRL 0 to switch back to upper-/lowercase.  

If you want to type only one uppercase letter, hold down SHIFT while you press that letter.  

If you want to type only one uppercase letter, hold down SHIFT while you press that letter.