The technology that serves as the backbone of the internet is Transmission Control Protocol/Internet Protocol (TCP/IP). This protocol suite enables the transfer of data across networks by defining how data should be formatted, addressed, transmitted, routed, and received. Each device on the internet uses TCP/IP to communicate and exchange information, whether it is a computer, smartphone, or server. Without TCP/IP, the functionality of the internet would be compromised, as it establishes the standards and conventions that allow various devices to communicate effectively.