What is Big Data Big Data - Big Insights is an important prose for teachers and students of 21st century . In the age of information technology, everyone should be aware of the importance of information shared, stored, monitored and analysed. The data is such a huge that the adjective big to Data seems to be small. Reading of the prose gives the teacher as well as students the big insights. We are aware of the words like kb (kilo byte), mb (mega byte), gb (giga byte) and tb( tera byte) . These are the measures of information( data.). Through this lesson we understand what exactly data means and how huge it is. Our sharing on whats-app , face book , twitter and other social media , our online transactions over amazon, snap-deal, flip-cart are recorded and analysed. The data is used by different organisations . Uses of Big Data We get calls, emails and messages from unknown for selling goods and services. When our child is in9th or 10th std, we ge...