What is AWS and How Does it Work?
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What is AWS?
Amazon Web Services (AWS) is the world's largest cloud platform, offering 200+ services for computing, storage, databases, AI, and more — pay only for what you use.
Why Cloud / AWS?
- No upfront hardware costs.
- Scale up/down instantly.
- Global data centers.
- Pay-as-you-go pricing.
Core AWS Services
| Service | Purpose |
|---|---|
| EC2 | Virtual servers |
| S3 | File storage |
| RDS | Managed databases |
| Lambda | Serverless functions |
| VPC | Networking |
Service Models
- IaaS — raw infrastructure (EC2).
- PaaS — managed platforms (Elastic Beanstalk).
- SaaS — ready software.
FAQs
Is AWS free to try?
Yes — a generous 12-month free tier. More in our AWS guides.
AWS vs Azure vs GCP?
AWS is the largest; Azure leads in enterprise; GCP excels in data/AI.