Distributed computing is the process of connecting multiple computers via a local network or wide area network so that they can act together as a single ultra-powerful computer capable of performing computations that no single computer within the network would be able to perform on its own.Distributed computers offer two key advantages:
Easy scalability: Just add more computers to expand the system.
Redundancy: Since many different machines are providing the same service, that service can keep running even if one (or more) of the computers goes down.
The user can run multiple instances of the same process to increase the process throughput. This can be done using the auto scaling feature.