Abstract: Big Data and Cloud Computing came before few years ago but their capture all kind of businesses, technologies and each and every people. After few years world canít think without Cloud Computing and Big Data Applications. Today is the time of combinations of number of technologies and the combined effects of emerging Internet technologies, increased computing power, and fast, pervasive digital communications were spawning new ways to manage talent and assets as well as new thinking about organizational structures. This paper is about Parallel Processing and Distributed Computing concept in Big Data and Cloud Computing Application. And also about how Big Data help Cloud Computing for Processing and vice-verse. The best examples of all above technologies are Hadoop-HDFS for File System or Storing Unstructured Data and Map Reduce is for Processing of the stored Data.

Keywords: Big Data, Cloud Computing, Distributed Computing, distributed Storage, Hadoop, Map Reduce, Parallel Processing.