Internet networks are systems that connect computers and devices, allowing them to communicate and share information. These networks use various technologies, such as routers, switches, and cables, to transmit data across different locations. The most common type of internet network is the local area network (LAN), which connects devices within a limited area, like a home or office. On a larger scale, the internet itself is a vast network of interconnected networks. It enables global communication and access to information through websites, email, and other online services. Internet networks rely on protocols, such as TCP/IP, to ensure data is sent and received accurately.