Not long ago, access to a supercomputer was a privilege of a select few, creating a stark divide between the institutions that could afford to compute at scale and those that could not. This chapter reveals how cloud computing has shattered this old paradigm, transforming computational power from a scarce, privately-owned asset into a democratized, on-demand utility accessible to anyone. We journey from the rigid world of traditional High-Performance Computing to the flexible, software-defined universe of the cloud. At the heart of this transformation are technologies like virtualization and containerization, which slice large physical servers into virtual machines and lightweight, portable applications. We explore how orchestration engines like Kubernetes manage these resources at scale, enabling the versatile service models (IaaS, PaaS, and SaaS) that allow researchers to rent precisely the amount of resource they need, for exactly as long as they need it. Through real-world examples from the NIH STRIDES initiative, the Broad Institute’s Terra platform, and Moderna’s vaccine development, we showcase that how this technological shift plays in life science computing.