Input Devices Supported : Kempston Joystick
The unlike most joystick that map directly to the keyboard the Kempston Joystick maps to a particular hardware port. Support for the Kempston Joystick must be part of the software. The Kempston joystick interface was popular and support was widespread. Certain games can make use of this joystick.
Kempston Joystick is part of the Input Devices Supported category.