Hadoop is a Big Data management framework utilising distributed storage and parallel processing techniques. The software is mostly used by Big Data analysts. Hadoop simplifies things and allows clustering multiple computers to analyse massive datasets rather than using one large computer to store data. There are three main components of Hadoop, including the Hadoop Distributed File system (HDFS), Hadoop MapReduce, and Hadoop YARN (Yet Another Resource Negotiator). These are categorised according to application, that is, HDFS is used for data storage, MapReduce comes in handy when there is processing required, and YARN takes care of all resources.