Linus Torvalds created the Linux kernel in 1991 as a personal project while he was a student in Finland. It has since grown significantly in popularity and become the most widely used kernel for operating systems. The history of Linux began with Torvalds' work to develop a free and open source operating system. He initially wanted to call it Freax but it became known as Linux. Tux, a penguin character, serves as the official mascot. While Microsoft competes against the Linux business model, their competition has benefited users of both platforms. Performance on desktops was a topic of debate but development has focused on improving that experience in recent years.