Suppose your university wants to host its website.
Traditional Method:
Buy physical servers
Maintain server room
Hire IT staff
Pay electricity 24/7
Upgrade hardware every few years
Very expensive ❌
Using AWS:
Create a virtual server (called EC2)
Select CPU, RAM, storage as needed
Deploy website
Pay only for hours used
If website traffic increases during admissions:
👉 Increase server capacity instantly.
If traffic reduces:
👉 Reduce capacity and save money.
That is scalability.
