A Live CD, Live DVD, or Live Distro is a special way of creating a computer operating system so that it is able to run without installing anything on the computer first. This special operating system is used when the computer is booting up, and runs all its programs off the object it is put on. The name of the operating system usually has something to do with the object, such as ""Live CD"" for CDs, ""Live DVD"" for DVDs, or ""Live USB"" for USB flash drives.