of serv…te, and the servers provide a response which is relayed back to your computer and forms the result. For Netflix and other top-tier sites, where millions of hours of video content is relayed across the internet between their servers and all the users, a much larger network of servers is needed to maintain performance. They do this by building something called a Content Delivery Network (CDN).
…one, one on a Sony TV that can play 4K video and Dolby sound, one on a Windows computer, and so on. Even more of these files can be made with varying video qualities so that they are easier to load on a poor network connection. This is a process known as transcoding. A special piece of code is also added to these files to lock them with what is called digital rights management or DRM — a technological measure which prevents piracy of films.