Cloud Computing
Cloud computing is the practice of using network servers hosted on the internet to store, manage, and process data rather than a local server or a personal computer.
Evolution of Cloud Hosting
Dedicated Server
Virtual Private Server (VPS)
Shared Hosting
Cloud Hosting
Amazon
Amazon is an American multinational computer technology corporation headquartered in Seattle, Washington. It was founded in 1994 by Jeff Bezos as an online bookstore.
Amazon Services
Currently, the CEO of Amazon is Andy Jossy.
Amazon Web Services (AWS)
Founded in 2006 as a Cloud Service Provider (CSP). However, Simple Queue Service (SQS) existed before, i.e. was launched in 2004.
After that, Simple Storage Service (S3) and Elastic Compute Cloud (EC2) were launched in March 2006 and August 2006 respectively.
Since April 2013, Amazon also started AWS Certification. Currently, the CEO of AWS is Matt Garman and the CTO of AWS is Werner Vogels.
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In November 2010, Amazon.com was migrated to AWS.
Cloud Service Providers (CSPs)
The company that provides multiple cloud services that can be chained together to create cloud architectures are called Cloud Service Providers.
All the features are accessible via a single unified API and utilize the metered billing (cost per usage). These providers also provide rich monitoring and IaaS (Infrastructure as a Service).
Example: AWS
If the company does not meet most of the requirements, they are referred to as Cloud Platforms. For example; Twillio, Hashicorp, etc.
Landscape of CSPs
Tier 1
AWS, Azure, Google Cloud, Alibaba Cloud
Tier 2
IBM Cloud, Oracle Cloud, Huawei Cloud, Tencent
Tier 3
Vultr, Digital Ocean, Akamai Connected Cloud (Linode)
Tier 4
OpenStack, Apache CloudStack
Common Cloud Services
| S.N. | Service | AWS Service |
| 1 | Compute | EC2 Virtual Machines |
| 2 | Storage | EBS Virtual Hard Drives |
| 3 | Database | RDS SQL Database |
| 4 | Networking | VPC Private Cloud Network |
AWS has 200+ cloud services such as; Analytics, Game Tech, Machine Learning, etc.
Evolution of Computing
Dedicated
Physical server utilized by a single customer.
Virtual Machines
Multiple virtual machines on one machine.
Containers
Multiple containers running on a virtual machine.
Functions
Serverless computing that runs only upon triggered.
Types of Cloud Computing
SaaS (Software as a Service)
These types of services are managed by service providers. They are specifically designed for customers.
PaaS (Platform as a Service)
These services focus on the deployment and management of the application in the cloud. These services are targeted for developers.
IaaS (Infrastructure as a Service)
This service provides access to the full architecture. These services are mostly targeted at admins and DevOps.
Cloud Computing Deployment Models
Public Cloud
Everything is built on the CSP
Also known as cloud-first or cloud-native
Suitable for startups, SaaS offerings
Private Cloud
Hybrid
Cross-Cloud
Using multiple CSPs at once
Also known as multi-cloud
Suitable for enterprises with distributed environment
