Serverless is identical in every respect to traditional hosting/managed services with one exception: micro-billing. In web hosting you are often either constrai

Serverless is identical in every respect to traditional hosting/managed services with one exception: micro-billing. In web hosting you are often either constrained by the "level" you pay for, or have to configure scale and pay for the size of your domain. True serverless should auto-scale on demand without your intervention, and it should only bill you for what you use. Have a slow month and are idle? Pennies. Have a phenomenal month and huge usage? Dollars. There is less server, not no server, but instead of worrying about the OS or even platform level dependencies, you can focus just on the bit of code you want to run. If your server is a house and a virtual machine is like renting a house, platform-as-a-service is an apartment and serverless is a hotel (thanks to Scott Hanselman for that analogy).