http://www.megaonlinetrainings.com - Hadoop is an open source software platform for handling large amounts of data. It has been developed and managed by Apache software foundation with many other external developers who contribute to it.

So, mainly, it can store huge or big data in computers ranging from one single server to a cluster of individual servers. Data processing software is installed on each and every computer that belongs to the cluster and they are used to perform data processing activities.

Hadoop works in such a way that, each of the computers in a cluster can individually and independently perform the data