Backing up of data : The process of copying data stored on a computer and making an exact dupicate of that data on another storage device or FTP the data to a remote system or on a CD or DAT (Digital Audio Tape of 24 GB capacity).

Back up of data will help an easy recovery from a system crash. A company's data is more valuable than it's hardware. It is inexpensive to store large amount of data at off site storage (to protect data from natural disasters, theft, viruses, worms etc).