Cloud Computing

Cloud Computing:

### Definition:

Cloud computing is a technology that allows users to access and use computing resources (such as servers, storage, databases, networking) over the internet, often on a pay-as-you-go basis.


### Key Components:

1. Service Models:

   - IaaS (Infrastructure as a Service): Provides virtualized computing resources.

   - PaaS (Platform as a Service): Offers a platform that allows users to develop, run, and manage applications.

   - SaaS (Software as a Service): Delivers software applications over the internet.


2. Deployment Models:

   - Public Cloud: Services are provided over the internet and available to anyone.

   - Private Cloud: Services are used by a single organization and may be located on-premises or off-premises.

   - Hybrid Cloud: Combination of public and private clouds.


3. Scalability:

   - Resources can be easily scaled up or down based on demand.


4. Resource Pooling:

   - Computing resources are shared among multiple users.


5. On-Demand Self-Service:

   - Users can provision and manage computing resources as needed.


### Examples:

- Storing and accessing files on Google Drive, hosting a website on AWS, using Microsoft 365.


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