# Cloud Computing
(AWS)

**In this module, We will cover:**

1. what is cloud computing?
2. what are regions and Availability Zones?

3 . what are the Cloud computing facilitates?


>cloud computing is a data center or multiple data centers made up of compute and storage resources connected by a network.

here is a picture of how the data center looks in the real world.

![2.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1654061914819/PnDieI38T.png align="left")


**Regions and Avalilability Zones**

The cloud infrastructure is built around regions and AZs. A region is a physical location in the world where we have multiple AZs. where AZs 
consist of one or more discrete data centers within the regions.

> AWS cloud span 84 AZs within 26 geographical regions around the world.

Another definition of cloud computing 
> cloud computing is the on-demand delivery of computer power, database storage, application, and other IT resources through a cloud services platform via the internet with pay-as-you-go pricing.

cloud computing facilitates 
1. Quick access to cost-efficient & flexible IT resources
2 . Accessing servers, databases, storage media, and a variety of application services on the world wide web.