Last updated: August 2026
By Danish, CTO at Engineer — 3 years of experience in AWS.
Amazon Web Services (AWS) is Amazon’s on-demand cloud computing platform. It provides infrastructure, storage, databases, machine learning, and application services. AWS helps businesses build scalable, secure applications without managing physical servers. You pay only for the compute power, storage, and features you use.
What Is AWS and How Does It Work?
AWS is a global cloud platform that provides IT resources over the internet. Users access services like EC2 (virtual servers), S3 (object storage), and Lambda (serverless compute) through the AWS Management Console, CLI, or APIs. AWS operates data centers in multiple geographic Regions, allowing workloads to run closer to end users.
AWS provides scalable cloud computing services to organizations worldwide.
Why Do Businesses Choose AWS?
Businesses choose AWS for scalability, reliability, and a wide range of services. Instead of setting up physical data centers, companies can adjust computing capacity in minutes. AWS also offers built-in security features, compliance certifications, and a global network that supports mission-critical workloads.
As AWS describes it: “AWS is the world’s most comprehensive and broadly adopted cloud platform, offering over 200 fully featured services from data centers globally.” — AWS, What is AWS?
AWS offers high availability through multiple availability zones.
| Factor | AWS Cloud | Traditional On-Premises |
|---|---|---|
| Cost model | Pay-as-you-go, no upfront hardware costs | Large upfront capital expense (CapEx) |
| Time to scale | Scale capacity in minutes | Weeks to months to procure and install hardware |
| Maintenance | AWS manages data centers and hardware | Your team manages or outsources maintenance |
| Availability | Multi-AZ and global Regions for high availability | Limited redundancy unless additional infrastructure is built |
| Global reach | Deploy workloads in regions worldwide | Restricted to physical locations you control |
What Are the Main AWS Services?
AWS groups services into categories like compute, storage, database, networking, and machine learning. Amazon EC2 provides virtual servers, Amazon S3 stores unlimited objects, and Amazon RDS manages relational databases. AWS also includes more than 200 services for IoT, analytics, security, and developer tools.
AWS provides on-demand cloud infrastructure services to startups and enterprises.
How Much Does AWS Cost?
AWS uses a pay-as-you-go pricing model. You pay only for what you use, with rates based on compute hours, storage gigabytes, and data transfer. AWS also offers savings plans and spot instances to reduce costs. The AWS Pricing Calculator helps estimate monthly bills.
AWS charges customers only for consumed compute and storage resources.
How Can You Start with AWS?
Start by creating a free AWS account, which includes access to the AWS Free Tier for 12 months. From the console, you can launch a virtual machine with Amazon EC2, host static files on Amazon S3, or deploy an application through Elastic Beanstalk. AWS also provides documentation, labs, and certification paths to guide beginners.
AWS offers training and certification programs for cloud practitioners.