What's the difference between GIS and electronic map?

GIS is a geographic information system. Generally speaking, it is an on-demand customized system, providing map-related analysis, processing, decision-making and other functions. Among them, maps (that is, geographic data) are needed as basic data, supplemented by various data analysis algorithms and decision-making algorithms to provide related functions. For example, Shanghai traffic information management system and national logistics management deployment system. Maps only provide geographical information. According to different media, there are electronic maps, paper maps, and image maps based on aerial photography and satellite photos. It is only used to provide geographic information or record geographic information.