Public Cloud is a cloud computing model where IT resources (servers, storage, databases, networking, software) are owned and managed by a cloud provider and shared securely among multiple customers over the internet.
Major Public Cloud Providers:
You pay only for what you use, and resources are available on demand.
Shared Infrastructure means:
Security is ensured through:
You sign up with a cloud provider:
The provider maintains:
You create virtual resources on shared hardware:
Each customer gets isolated access.
Billing is based on:
The cloud provider manages:
You want to host a company website using a Public Cloud shared infrastructure.
Sign up for an AWS account.
This virtual server runs on shared AWS hardware.
sudo apt update
sudo apt install apache2 -y
sudo cp -r mywebsite/* /var/www/html/
Open browser and visit:
http://<public-ip>
Your website is now running on AWS public cloud shared infrastructure.
Public Cloud shared infrastructure allows businesses to:
Use powerful IT resources without buying hardware
Scale globally in minutes
Pay only for what they consume
Run applications securely on shared data centers
AWS, Azure, and GCP provide reliable, scalable, and cost-effective public cloud platforms.