Abstract: A computer input device for inputting graphical location data and alphanumerical data. The device is arranged with a keypad for the input of the alphanumerical data. According to the invention, keys of the keypad are not only used for input by means of individually enacted keys, but also for input by means of two or more simultaneously enacted adjacent or non-adjacent keys, thereby enhancing the gamut of input considerably. Furthermore, a user may also set the keypad in a number of modes, (e.g. Non-Shifted mode, Shift mode, Num mode and Num-Lock mode), thereby further enhancing the input capability considerably. Advantageously, certain keys may also be given a user programmable function.