load balancing

A way of handling heavy server trafficRefers to any kind of electronic message -- email, web request, streaming video, or anything else -- that travels over a network. by having multiple serversA computer with a dedicated purpose. Older familiar examples are print servers (a computer that controls local printing) and file servers (a computer used for storing files centrally). More modern examples are web servers (the computers that handle your web requests when you use your browser) or application servers (computers dedicated to handling the computing needs of a specific application). Servers are often powerful, expensive machines since they have to handle a heavy load. that can do exactly the same thing and then using another server as a dispatcher to assign tasks to the least busy servers.