The name of compact discs that contain an operating system and often other programs. LiveCDs are capable of running on the computer without having to be installed and hard drive storage space is not required. Typically these CDs are a way for a user to try an operating system without having to format their hard drive and install it. For example, many Linux distributions are available in LiveCD format allowing Microsoft Windows users to experiment with Linux without having to erase Windows.
Many LiveCDs are saved as an ISO image, which allows a user to create a CD directly from the ISO without having to manually set up the CD. An example of a LiveCD is the Anonym.OS LiveCD, an OpenBSD OS that has been designed to help keep a user anonymous while on a network and the Internet.