This document provides an introduction to cloud computing using Amazon Web Services (AWS) and MongoDB. It defines cloud computing and describes the various service models including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It outlines some of the key AWS computing, storage, database, and other services like EC2, S3, DynamoDB, and ElastiCache. It also introduces MongoDB as a scalable and natural document-oriented NoSQL database and compares some of its features to SQL databases. Finally, it provides two examples of using AWS and MongoDB for DNA sequencing and genome analysis.