An internet backbone is a high-capacity network of data routes and connections that forms the core of the internet. It consists of large, powerful servers and high-speed fiber optic cables that transmit vast amounts of data across long distances. These backbones are operated by major telecommunications companies and are essential for connecting smaller networks, allowing data to flow smoothly between different regions and countries. The backbone supports various services, including websites, email, and streaming, ensuring that users can access information quickly and reliably. Without these robust infrastructures, the internet would be slower and less efficient, limiting communication and access to resources worldwide.