Hi My wife has recently brought a mini projector that comes with a rca cable. We was wondering if it was possible to connect it to a laptop?
It depends on whether they're yellow/red/white connectors (s-video or composite video), or red/green/blue connectors (YPrPb or component video), but you can get either from Amazon: composite & component
but the chances are your laptop has neither a component or composite video output. There are VGA or HDMI to component or composite converters available but they are generally quite expensive and depending on what you plan to use it for they are unlikely to give a good resulting picture (especially for video playback)