Computer networks are used to stream music and video content from servers to users' devices. They enable the transmission of large amounts of data quickly and efficiently. Networks can be used to deliver content on-demand or in real-time, such as live events. They can also be used to optimize the delivery of content based on users' preferences and network conditions. Additionally, networks can be used to enable interactivity between users, such as sharing content and commenting. With computer networks, streaming music and video content can be more accessible, personalized, and engaging.