What term describes the network of connected devices communicating over the World Wide Web?

The term that describes the network of connected devices communicating over the World Wide Web is "Internet." The Internet is a global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide. This vast network enables different types of communication and access to a plethora of information and services, making it distinct from other network types.

Other terms, while related, refer to more specific scenarios. An intranet refers to a private network accessible only to authorized users within an organization, facilitating internal communication. An extranet also involves a private network, but it allows access to select outsiders, such as business partners, to collaborate. A local area network (LAN) is a more localized network, typically confined to a small geographical area like a home or office. These definitions highlight the unique properties of the Internet as the broad, interconnected network that facilitates communication across the globe.