MapReduce - Computerphile: https://www.youtube.com/watch?v=cvhKoniK5Uo&ab_channel=Computerphile

Map Reduce explained with example | System Design: https://www.youtube.com/watch?v=cHGaQz0E7AU&ab_channel=ByteMonk

Hadoop In 5 Minutes | What Is Hadoop? | Introduction To Hadoop | Hadoop Explained |Simplilearn: https://www.youtube.com/watch?v=aReuLtY0YMI&ab_channel=Simplilearn

Apache Spark - Computerphile: https://www.youtube.com/watch?v=tDVPcqGpEnM&ab_channel=Computerphile