Web hosting has changed drastically since it started. Physical server machines were shared among many web applications, and it was a really big challenge when it came to scale. It proved to be very expensive for any individual or company to afford an entire server machine to host their web application.

But, thanks to virtualization, the need for a physical server for any web application has been eliminated. Virtualization provides the ability to create many virtual servers as opposed to a single physical server.

Now, the new era of serverless is making the developer's life easier, as we can focus our hard work on development instead of investing time and money on deployment.

Amazon introduced Amazon Elastic Compute Cloud (Amazon EC2) as a cloud computing solution. Amazon EC2 makes it possible to create an array of virtual servers or instances the Amazon Cloud without investing in hardware. You can scale it as per your requirements in terms of networking, computing, and storage.

The serverless approach is nothing but the process of eliminating the manual workload of setting up the hosting environment. Cloud service providers provide serverless services, and so you never actually own any server. Instead, the cloud service provider executes your code in a high-availability infrastructure.