Changes
/* Technical */
* One pin is probably used as Light Sensor, but which?
* Other pins might be used as power supply (needing to drag some pins HIGH and others LOW by software) (or does it contain a battery)?
** Software seems to indicate it has a battery..?*** Rather not: The spectrum version connects to the spectrum EAR socket and to a huge 9V battery (the amstrad version doesn't seem to have any such 9V plug)
* There seems to be no additional button (like on Light-guns)?
* According to the advert and package, the light pen works with '''color monitor only''' ("pour moniteur couleur uniquement"), ie. not with green screens.