A "Gateway" is a point of entry or access that connects different networks or systems. In computing, it often refers to hardware or software that allows data to flow between different networks, such as a local area network (LAN) and the internet. Gateways can also perform protocol conversions, enabling communication between devices that use different communication protocols. In a broader context, a gateway can refer to any physical or metaphorical entry point, such as a door or an opening in a wall. In urban planning, gateways can signify the entrance to a city or neighborhood, often marked by distinctive architecture or signage to welcome visitors.