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Compute: EC2 & Lambda
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EC2 vs. Lambda
- Amazon EC2 (Elastic Compute Cloud): These are virtual servers (Instances). You choose the OS (Windows/Linux), the CPU/RAM size (Instance Type), and you are responsible for patching and managing them. It is like having a remote computer.
- AWS Lambda: This is "Serverless." You upload your code (Python, Node.js, etc.), and AWS runs it only when triggered (e.g., by an API call or file upload). You don't see or manage any servers, and you only pay for the milliseconds your code runs.