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Serverless computing is a computing environment where developers can write software without needing to know the details of the server where the software will ultimately run. In general, developers don’t need to know server specs, storage, clustering or any configurations.
Amir Jerbi, CTO at Aqua Security , said that “serverless is a rather bad name for a cohort of technologies that enable executing application code without managing or caring about the underlying infrastructure, and doing so on demand and in a highly automated way.”
Ben Kehoe, Research Scientist at iRobot, wrote that the importance of serverless is that it “is a way to focus on business value. How do functions help you deliver value? They let you focus on writing business logic, not coding supporting infrastructure for your business logic.”
Niko Köbler, a software architect, said that “with serverless, you just pay for what you actually use. There is no idle time of infrastructure you have to pay for. If there is just one event per hour, and your function will just run one second, you’ll pay only for one second per hour, not the whole hour as currently with VMs and other platforms, because you need the environment available just in case there will be an event. And if there suddenly are thousands of events per second, your cloud provider will take care of that; the whole environment will scale transparently without forcing you to do anything.”