A digital billboard is a big screen that shows pictures and words like a TV, but it's meant to be seen outside by lots of people. The screen is really bright so you can see it even when it's sunny outside. The pictures and words can change quickly because they are computerized. Digital billboards are used to show advertisements for products and events, or to give important information like weather alerts or traffic updates. They are powered by electricity and can be controlled remotely, so people can change what's on the screen without being there in person.