What is Hadoop? Hadoop is a big data computing framework that generally refers to the main components: the core, HDFS, and MapReduce. There are several other projects under the umbrella as well. For more information, see this interview with Cloudera CSO Mike Olson. What is a Raspberry Pi? The Pi is a small, inexpensive ($39) ARM based computer. It is meant primarily as an educational tool. Is Hado