My First Steps Into AWS
I have been learning AWS through YouTube tutorials, and I want to document what I have learned so far. This is an honest beginner-level breakdown of the core AWS concepts I have encountered.
So far I have covered some major areas. Here is what I have learned.
1. What is Cloud Computing?
From my understanding, instead of buying or trying to maintain physical data servers, you rent access to storage, database, security, network and software from cloud providers like AWS.
Key benefits of cloud computing:
• There is cost efficiency
• It is reliable
• You can use your application anywhere in the world
• You can grow your resources instantly
2. What is AWS?
This is the leading cloud computing service today. It is a massive cloud computing platform that lets you rent virtual computers, storage and software tools over the internet.its offers over 200 services
3. The Core Services
I. Compute: This allows you to rent virtual servers through Elastic Compute Cloud (EC2).
II. Databases: Instead of manually setting up and backing up databases on your own servers, AWS handles it. Two key database are Relational Database Service and DynamoDB.
III. Storage: Simple Storage Service (S3) is a like an hard drive in the cloud. You can use it to store images, videos, documents, backups. It it’s highly durable.
IV. Networking: This is a private networking. VPC (Virtual Private Cloud) is AWS's private networking service. It gives you control over your own isolated section of the AWS cloud , who can access it, how traffic flows in and out, and how resources communicate with each other.
V. Security: AWS operates on a Shared Responsibility Model. That means Amazon protects part, and you protect what you put into it. One of the core security tools is Identity and Access Management (IAM). It ensures that only specific employees or apps can access specific databases or files.
| AWS Is Responsible For | Customer Is Responsible For |
|---|---|
| Physical data center security | Manage user access |
| Hardware and networking infrastructure | Secure data stored in S3 |
4. Regions
A region is a physical geographic area where AWS is structured around the world. When you deploy an application on AWS, you can choose the region you deploy it to, most importantly close to your users to increase better performance .
As of 2026, AWS has about 39 geographic regions
Choosing the right region is a fundamental decision that affects the performance, cost, and resilience of every application you build.
Final thoughts
These four areas — cloud computing fundamentals, AWS global infrastructure, core services and security basics — form the backbone of everything else in AWS. Every advanced topic I will learn in AWS builds on these concepts. Understanding them is not optional,It is very essential.
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