When you hold ALT, and press 1-4 numbers and the number pads the might end up like.. ☺♦♣☻♥♠♣○◘•Ü♀☺█Äö╞£▒├─≥▌æ▓▌▌Ä█O╒»╤▼£√¥ ..What is that called?
Alt codes just go Character map to find out what the code is or what logo you want Go Start > All programs > Accessories > System tools > Character map