Definition
AWS (Amazon Web Services) is a cloud computing platform operated by Amazon that provides on-demand computing resources and managed services over the internet. Instead of buying and maintaining your own physical servers, you rent computing power, storage, databases, and networking from AWS and pay for what you use. AWS offers over 200 services covering everything from basic virtual servers and file storage to machine learning, email delivery, content delivery networks, and serverless computing. It operates data centres across the globe, allowing businesses to run their applications close to their users for better performance.
Why It Matters
AWS removes the need to invest heavily in physical infrastructure before your business knows exactly how much capacity it needs. You can start small and scale up as demand grows, or scale down during quiet periods — paying only for the resources consumed. This flexibility is particularly valuable for businesses with variable or unpredictable traffic. AWS also handles the underlying maintenance, security patching, and hardware replacement that would otherwise require dedicated IT staff. For business owners, the decision to use AWS (or any major cloud provider) is fundamentally about trading capital expenditure for operational expenditure, and gaining access to enterprise-grade infrastructure without the enterprise-grade upfront cost.
Example
A seasonal e-commerce business experiences ten times its normal traffic during the holiday period. On traditional hosting, the business would need to pay for servers large enough to handle peak traffic all year round — or risk the site crashing during the busiest sales days. On AWS, the application automatically scales up when traffic increases and scales back down when it subsides. The business pays peak rates only during the peak weeks and normal rates for the rest of the year, without any manual intervention or downtime.