Your data is one of the most precious things you have on your computer. In this digital era, we consider keeping all sorts of data – sensitive documents, business information, personal content like music, movies, pictures etc. on our computers and the losing any of these priceless content is probably the worst nightmare. Although the technology is evolving, there is still scope to make them reliable and prevent them from malfunctioning. But, until then, there is still a fair chance of your computer running into failure and you losing all the data. While there is little to be done about system failures, data backup is an effective way to secure the data.