Ti-99 Controllers (TI-99)

Texas Instruments originally marketed a pair of pretty crude joysticks. Each consists in four switches arranged all around the stick. By pushing the stick towards a switch you can close it. By pushing it on the diagonal between two switches you close both of them. This gives you eight possible joystick positions (nine, if you count the center). In addition, each joytsick has a unique pushbutton that serves as a "fire" trigger.