A hub is a central point that connects various elements or systems, facilitating communication and interaction. In technology, a hub often refers to a device that connects multiple computers or network devices, allowing them to share data. This is commonly seen in local area networks (LANs), where a hub enables devices to communicate with each other. In a broader context, hubs can also refer to locations or organizations that serve as focal points for activities or services. For example, a transportation hub, like an airport or train station, connects different modes of travel, making it easier for people to transfer between them.