backup?..is it important?

What is data backup?

Backup of data can mean different things for different users!

Is it a hard disk you want to backup, a server on a LAN or a partition of your hard disk?

It can also be a database, specific files or Directories/Folders. On which medium are you planning to store the backup?

The ways data has been stored has changed over time. From punch strips, removable disk to data tapes.

Data in the old days was stored on larges tapes. When the program needed to process data, the information was loaded from tapes in real times.

Things have changed with the adoption of the Internet, LAN, WAN and ever more powerful storage medium.

Today it is becoming more and more popular to make a snapshot of disk drives and write that information on to a DVD with the computer's DVD player.