Module 1: Introduction to cloud

What is a client-server model?

In computing, a client can be a web browser or desktop application that a person interacts with to make requests to computer servers. A server can be services such as Amazon Elastic Compute Cloud (Amazon EC2), a type of virtual server.

Cloud computing

• Cloud computing is the on-demand delivery of IT resources over the internet with pay-as-you-go pricing.

• On demand delivery → a cloud provider has the resource you need, when you need them
• IT resource over the internet → Servers, networks, storage, development tools and applications
• Pay-as-you-go pricing → Pay only what you need when you use it.

Why cloud computing ?

1. IT assets as programatic resource — quickly set up and tear down resource
2. Access resources dynamically — for agility and flexibility
3. Pay-as-you-go to test and use a system — no need to fully committed

Benefits of cloud computing