Communications networks

Communications networks are systems that connect computers, devices, and people to share information efficiently. They include hardware like cables, routers, and satellites, as well as software protocols that ensure data is transmitted accurately. These networks enable activities such as browsing the internet, making phone calls, and sending emails, by creating a structured way for data to travel between different points. Essentially, they serve as the infrastructure that links various devices, facilitating seamless communication and information exchange across local or global scales.