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What Is Serverless?
Run code on demand without managing servers.
A
AiTechWorlds
AiTechWorlds
Serverless computing runs your code on demand without managing servers, scaling automatically with usage. This visual guide covers functions, event triggers, auto-scaling, cold starts, pricing, and when serverless is the right choice.
Run code on demand without managing servers.
The provider manages them — you just deploy code.
Deploy small functions that run on triggers.
HTTP requests, queues, and schedules run functions.
Scales from zero to thousands automatically.
You pay only when code runs.
First run after idle has extra startup delay.
Functions don’t keep memory between runs.
Use databases or storage for persistence.
AWS Lambda, Cloud Functions, Azure Functions.
Databases that scale to zero too.
Route HTTP requests to functions.
APIs, automation, and event processing.
No ops, auto-scaling, and low idle cost.
Cold starts, time limits, and vendor lock-in.
Serverless is simpler; containers give control.
Cheap when idle, can cost more at high volume.
Logs and tracing matter for debugging.
Spiky, event-driven, or small workloads.
Deploy a simple function triggered by HTTP.
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