typo.zip (7,636 bytes). Suitable for RISC OS 3 and above. RISC OS 5 incompatible.
BASIC source code to 6 different and thoroughly pointless modules which do various things to the keyboard input:
Adds 1 to the ASCII value of each character entered.
Allows the user to map one character to the other; default operation is to output 'NOW I KNOW THE ALPHABET!!!' when the user
types the alphabet in upper-case letters.
Repeats the same message ad infinitum as keys on the keyboard are pressed.
As typo3, but with a different message displayed once before the repeated one begins.
An entirely different module, which acts on characters written to screen. It converts them to ofla
A module that ROT13's the text you enter.