Serverless Computing is considered to be the fourth wave of computing where x86 servers, virtual machines, and containers represented the first three generations. With this new paradigm, developers can squarely focus on the code and without the need to deal with the underlying infrastructure. They never have to plan the number of servers, amount of storage, and the network topology of deployments. Since the platform deals with one function at a time, and functions are the fundamental deployment units, this model is often called Functions as a Service (FaaS).
FaaS is fundamentally different from Infrastructure as a Service (IaaS) and Platform as a Service (PaaS).
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