A Chromebook is a type of laptop computer. It runs on a special operating system called Chrome OS. This means that it looks and works like the Google Chrome web browser that you may be familiar with. It lets you do many of the same things as a regular laptop, like browse the internet and work on documents, but it requires you to be connected to the internet to use it. Unlike regular laptops, all of the programs and applications you need are already installed on the Chromebook.