Serverless Computing

Status: public · Confidence: medium (0.605) · Basis: verified_sources

## TL;DR

Serverless computing abstracts away server management — developers write and deploy functions; the cloud provider handles provisioning, scaling, and maintenance. Pay-per-request model (no idle cost). AWS Lambda (2014) pioneered the model; others: Azure Functions, Google Cloud Functions, Cloudflare Workers.

## Core Explanation

FaaS (Functions as a Service) is the core of serverless. Cold start: first invocation after idle period has latency penalty (provisioned concurrency mitigates). Stateless by design — state must be externalized (DynamoDB, S3). Event-driven: triggered by HTTP, S3 uploads, queue messages, cron schedules. Serverless is NOT 'no servers' — it's 'no servers YOU manage'.

## Further Reading

- [AWS Lambda Documentation](https://docs.aws.amazon.com/lambda/)

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