Big Data
What is Big Data ? Big Data refers to large amount of data sets that can not be efficiently managed by the common database management system. Extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations, especially relating to human behavior and interaction. Data increasing day by day 1 ZB = 1000 EB 1 EB = 1000 PB 1 PB = 1000 TB 1 TB = 1000 GB 1 GB = 1000 MB 1 MB = 1000 KB 1 KB = 1000 BYTE Note - Around 2.5 quintillion bytes of data is generated every day in all over the world, calculated by IBM. Some Facts Every sec - 822 tweets on Twitter Every min - 510 Comments on Facebook Every min - 293000 statuses on Facebook Every min - 136000 photos uploads on Facebook Every hour - Walmart handles 1 million customer transaction Challenges In collecting data. In storing data. In processing data. In sharing and Securing data. In creating and utilizing meaningful insights from their data. Where we can loss data In Power Failure - If electricity i...