Comment by maitrik

The phrase that Amazon used when launching lambda was 'deploy code not servers'. To me this sums up what 'serverless' means. It means the developer doesn't have to worry about servers in any way. With AWS Lambda/API Gateway (and arguably with Google App Engine before it) you take away the toil of having to:

  * Manage/deploy servers
  * Monitor/maintain/upgrade servers
  * Figuring out tools to deploy your app to your server
  * Scaling an app globally.
  * Coping with outages in a data-centre/availability
  * Worry about load-balancing & scaling infrastructure