AWS
✅ What is AWS?
Amazon Web Services (AWS) is a comprehensive cloud computing platform provided by Amazon. It offers on-demand, pay-as-you-go cloud services like computing power, storage, databases, machine learning, networking, and more.
👉 Launched: 2006 👉 Used by: Startups, enterprises, government organizations worldwide.
🔑 Key Features of AWS:
Scalability & Flexibility
Automatically scale resources up/down based on demand.
Pay-as-you-go
Only pay for what you use — no upfront investment.
Global Infrastructure
Data centers (called Regions & Availability Zones) worldwide.
Secure & Compliant
High-level security, encryption, and compliance (ISO, GDPR, HIPAA).
Wide Range of Services
From computing, storage, databases to AI/ML, analytics, and IoT.
✅ Main Categories of AWS Services:
1. Compute
Amazon EC2 (Elastic Compute Cloud): Virtual servers (VMs).
AWS Lambda: Serverless computing (run code without servers).
Elastic Beanstalk: Platform for app deployment (PaaS).
ECS & EKS: Docker containers & Kubernetes management.
2. Storage
Amazon S3 (Simple Storage Service): Scalable object storage for files, backups.
Amazon EBS (Elastic Block Store): Block storage for EC2 instances.
Amazon Glacier: Low-cost archival storage.
3. Databases
Amazon RDS (Relational Database Service): Managed relational databases (MySQL, PostgreSQL, SQL Server, Oracle).
Amazon DynamoDB: NoSQL database.
Amazon Redshift: Data warehouse for analytics.
Amazon Aurora: High-performance relational database.
4. Networking & Content Delivery
Amazon VPC (Virtual Private Cloud): Isolated network setup.
AWS CloudFront: CDN (Content Delivery Network) for fast content delivery.
Elastic Load Balancing (ELB): Distribute traffic for high availability.
Route 53: DNS and domain management.
5. Security & Identity
AWS IAM (Identity and Access Management): Manage users and permissions.
AWS KMS (Key Management Service): Encryption and key management.
AWS Shield & WAF: DDoS protection and web application firewall.
6. Machine Learning & AI
Amazon SageMaker: Build, train, deploy ML models.
AWS Rekognition: Image & video analysis.
Amazon Lex: Chatbots.
Amazon Polly: Text-to-speech service.
7. Monitoring & Management
Amazon CloudWatch: Monitor AWS resources.
AWS CloudTrail: Log API activity for auditing.
AWS Config: Track resource configurations.
8. Developer Tools
AWS CodeBuild, CodeDeploy, CodePipeline: CI/CD tools.
AWS CloudFormation: Infrastructure as Code (IaC).
AWS CLI & SDKs: Command line and APIs for automation.
✅ AWS Global Infrastructure
Regions: Physical locations worldwide (e.g., US-East, Asia Pacific).
Availability Zones (AZs): Multiple data centers within each region for redundancy.
Edge Locations: For CDN (CloudFront).
🌍 Over 30+ regions & 100+ AZs worldwide — enabling high availability and low latency.
✅ Popular Use Cases for AWS
Web Hosting
EC2, S3, CloudFront, Route 53
Big Data & Analytics
Redshift, EMR, Athena, Kinesis
Machine Learning/AI
SageMaker, Rekognition, Comprehend
Mobile & Web App Backend
Lambda, API Gateway, DynamoDB
Enterprise Applications
RDS, VPC, IAM, Directory Service
Disaster Recovery
S3, Glacier, CloudEndure
✅ Pricing Model
Pay-as-you-go: Only for resources you use.
Free tier: First 12 months free for some services (e.g., EC2, S3, RDS).
Savings Plans & Reserved Instances: Discounts for long-term commitments.
✅ Advantages of AWS
Scalable and Flexible
Easily adjust resources as needed.
Highly Secure
Data encryption, compliance, IAM.
Wide Range of Services
Over 200 fully featured services.
Global Reach
Data centers across the world.
Cost-effective
Pay only for what you use.
Enterprise and Start-up Friendly
Used by companies of all sizes.
📊 AWS Market and Clients
Top customers: Netflix, NASA, Airbnb, Samsung, General Electric, LinkedIn.
Market share: AWS holds the largest share of the global cloud market, competing with Microsoft Azure and Google Cloud.
🎯 Summary:
What is AWS?
Leading cloud platform offering 200+ services.
Why use AWS?
Scalability, security, global reach, low cost.
Popular for?
Hosting, databases, AI, big data, apps.
Key competitors?
Microsoft Azure, Google Cloud Platform (GCP).
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