Xubuntu is a lightweight and user-friendly operating system based on the Ubuntu Linux distribution. It uses the Xfce desktop environment, which is designed to be fast and efficient, making it ideal for older hardware or users who prefer a simple interface. Xubuntu comes with a variety of pre-installed applications, including a web browser, text editor, and media player, allowing users to perform everyday tasks right out of the box. It also supports a wide range of software available through the Ubuntu repositories, providing users with access to thousands of additional applications.