Cloud Computing: Technologies and Operations Explained

What is this page about?

An explainer of cloud computing, opening with the origin of AWS from Amazon's underutilized internal infrastructure. It defines the model and its characteristics, the three service models (IaaS, PaaS, SaaS), the major providers (AWS, Azure, GCP), the deployment models (public, private, hybrid, multi-cloud), and serverless computing, then covers the shared-responsibility security model, cloud cost management and optimization, architecture patterns (stateless services, message-queue decoupling, multi-region), scaling strategies, and when cloud is not the answer.

What has been corrected on this page?

Every accepted correction to this page is recorded with the exact change, so readers can see how the page improved over time.

1. 11 July 2026 · corrected by Melik Can Sariyer

   AWS revenue (~$90B) is far smaller than Amazon's ~$575B total/retail revenue; AWS is the most profitable segment but not larger than retail by revenue

   Before

   By 2023, AWS generated $90 billion in annual revenue---more than Amazon's entire retail business---and became the most profitable division

   After

   By 2023, AWS generated $90 billion in annual revenue---and became the most profitable division of one of the world's most valuable companies

   Why: Verified already correctly fixed on the live site (body content). No mention of the retail-revenue comparison in faq, excerpt, or meta_description. No further action needed.

   View the full record →

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