033. packet switching: the internet postal service (ks3)
Learn how the internet sends data using packet switching, breaking down information into tiny pieces to travel quickly across the globe.
When you download a game or stream a video, the file does not travel across the internet in one giant piece. Instead, it is chopped up into thousands of tiny digital parcels. In this lesson, we will uncover the clever system known as packet switching. You will learn how computers act like a highly efficient postal service, routing these packets to their destination.
Last modified: March 25th, 2026
