AWS Builder Center
Amazon EC2: Renting Your First Virtual Computer in the Cloud

Amazon EC2: Renting Your First Virtual Computer in the Cloud

Learn how Amazon EC2 acts as your personal, on-demand computer in the cloud—ready to run code, host apps, and scale up whenever you need.

Cloud Enthusiast
Now that your account is secured and you know where to store files, it is time to actually run some code. In AWS, the most famous way to do this is with Amazon EC2 (Elastic Compute Cloud). Simply put, EC2 lets you rent virtual computers—called "instances"—that run inside Amazon’s massive data centers. Instead of buying expensive hardware, you can launch a fully functional server in seconds, choose its operating system (like Linux or Windows), and configure its memory and processing power with a few clicks.
​What makes EC2 so powerful is the "Elastic" part of its name. If you are running a small personal project, you can use a tiny, free-tier instance that costs nothing. But if your application suddenly gets thousands of visitors, you can scale up to a supercomputer instantly, or even set it to automatically add more servers when traffic spikes. The best part? You only pay for what you use, down to the second. When you are done testing, you can stop or terminate the instance, and AWS immediately stops billing you.
​For beginners, the most important things to watch are your security and costs. When you launch an EC2 instance, AWS helps you set up a digital firewall called a Security Group to control what traffic can enter your virtual machine. Always keep this strict to keep bad actors out. As long as you choose a t2.micro or t3.micro instance on the Free Tier and remember to shut it down when you're done, EC2 is the perfect, risk-free playground to host your first website or run your first backend in the cloud!
Any opinions in this article are those of the individual author and may not reflect the opinions of AWS.
Enjoyed reading this content? Let the author know!

Your likes, comments, shares, and saves help creators reach more builders.

Loading recommendations

Loading article