What is serverless computing?

To understand what serverless computing is all about and how it came to be, we first need to travel back in time to the era of mainframes and traditional data centers! Sounds like a long-lost time, right? Don't worry, we are not going that far back. This is probably in the time when most IT organizations had massive in-house data centers for hosting almost all enterprise applications and services. First, these applications were hosted directly on physical servers, and then eventually migrated onto the virtualized environments that provided a better utilization of resources as well as helped to slash down the overall costs and time for deployments from months to days. With the advent of the virtualization era, we also started to develop and use more convenient deployment tools that helped to deploy our applications with more ease, but it still meant managing the application's underlying operating system, software platform, and so on:

With virtualization clearly...