The internet is millions of computers that are digitally connected to each other by cable, fibre or wireless links. The internet is used everyday by people from around the world. The internet can be used for websites, listening to music, communicating with people or to do so many other things. But have you ever wondered about how the internet works?
If you are on a website and there are pictures. How do the pictures send through to your computer?
Sending and Receiving information:
An images is hosted on a web server, so your computer sends a request to the web server for the image. The computer sends a request for the image automatically.
When the request is sent, it is sent in a ‘packet’. Imagine a packet as a virtual parcel that hold lots of important information. The most important pieces of information are the web server that the images is stored on, and the IP address of you computer.
Special computers (routers) and devices (switches) direct the packet from your computer to the web server. Also, the web server could be local or on the other side of the world.