In Amazon Web Services the server is called – Amazon Elastic Compute Cloud or Amazon EC2
What is Amazon EC2 – It is a Virtual server unlike traditional physical servers kept individually by the organizations, with Amazon EC2 organizations now can take space virtually and focus on businesses, strategies rather than the hassles of physical servers.
EC2 validates whether the request is valid or not, then fulfils the request. Proper mechanisms are in place with AWS, each and every request is validated before the response is sent.
Business solutions can have multiple clients and multiple EC2s.
The key concept behind AWS is – You only pay for what you use.
At AWS you don’t prepay for anything, normally you hire a server and pay even when it is not completely utilized, at AWS you pay for the used section of EC2 only. No capacity constraints. Just click a button if you need extra EC2, another click if you do not need extra EC2, capacity at your tips. Just WOW
Cloud Computing – Definition – It is on-demand delivery of IT resources over the internet with pay as you go pricing.
The three cloud computing deployment models are cloud-based, on-premises, and hybrid.
Cloud Based: In a cloud-based deployment model, you can migrate existing applications to the cloud, or you can design and build new applications in the cloud. You can build those applications on low-level infrastructure that requires your IT staff to manage them. Alternatively, you can build them using higher-level services that reduce the management, architecting, and scaling requirements of the core infrastructure.
For example, a company might create an application consisting of virtual servers, databases, and networking components that are fully based in the cloud.