Ubuntu is an open-source operating system that can be easily downloaded from its official website. Participants will begin by visiting the Ubuntu website to download the latest ISO file. Once downloaded, they will use software like Rufus or Balena Etcher to create a bootable USB stick. A bootable USB allows the user to install the operating system on a computer without needing a physical DVD. It is important to use a USB stick with at least 4GB of storage, and participants will also learn to select the correct partition scheme and file system when creating the bootable media.