You may have heard that cloud computing allows for scaled, on-demand high performance computing (HPC) and storage. But what is cloud computing and how does one access it? Cloud computing comprises a number of different services and models under one umbrella. Google Drive and Dropbox are examples of cloud computing software a service: the user interacts with software on a web browser rather than the underlying cloud infrastructure. Cloud compute providers like Amazon Web Services(AWS), Microsoft Azure or Google Cloud Compute (GCC) act similarly as water authorities, providing infrastructure for customers to do whatever they need. The providers (AWS, Azure, GCC) pay for the wells/pumps (CPUs), delivery infrastructure, including pipes and canals (bandwidth), and short to long-term storage in the case of water towers and reservoirs (SSDs and HDDs). Water authorities only charge customers for the water (compute resources) they use. For larger customers, water prices fall the more they use.