What is Big Data? The Term “Big Data” is Used to Describe : The large collection of structured and unstructured data, which is difficult to capture, process, store, search and analyse. Why Hadoop Came Into Existence? Where Does Big Data Come From ? The data coming from everywhere for example In last 5-10 minutes on Facebook, there is millions of links shared, friend requests, photos uploaded and comments,event invites Consumer product companies and retail organizations are monitoring social media like Facebook and Twitter to get an unprecedented view into customer behaviour, preferences, and product perception GPS data from mobile [...]