How Serverless Computing will Change the World in 2018
Elliot Forbes
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Serverless = A s system that still uses a server but you aren’t the owner, if the server fails then you can’t go physically to the server and try to fix it

Datacenters

How a cloud datacenter works?. Lets say that your machine fails. Because machine fails. Then, a technician will go to your machine and will replace your node server for a new one. Your information is gone so all your services served by this machine are offline. But, you get a new node (a blank one) and they can ensure you a proper uptime (machine uptime, not server functionality uptime)

However, you could backup your data… paying an extra for that. Also, you could get redundancy, paying another extra. And so on.