Network clone (also called multi-cast clone) technology is mainly used to install operating system to, restore data to, backup/copy data from, or make system image from the hard disks of multiple client computers within a local area network (LAN) in batch, thus minimize the time you spend on installing the clients' OS or backuping data one by one every time. Of course, it is an old technology, but in many environments that is still practical and works all right.