The latest record for the value of pi, all 2.7-trillion digits of it, was set by a software engineer working with a home PC running Red Hat Fedora Linux.
Today, Microsoft is issuing an emergency patch for Internet Explorer and Mozilla is releasing the latest version of Firefox. Make the right browser upgrade: Go Firefox.
One reason why some companies won't consider running a Linux desktop is that it's not easy to get them to work with Active Directory. Likewise and Canonical have an answer for that.
Once upon a time you needed to know shell commands and how to edit configuration files to use Linux. Today, all you need to know is how to handle a mouse.