What is a push?

[AC Question]

what is a push

what does smart push mean when synchronisin my email

 

[mc3105]

I had the same question, and after a long search this is the best I found from the korea times web site (in the second page of the google search):

Smart Push integrates and manages keep-alive signals between smartphones and messenger and social networking services at a separate server. The push server located between the two parties collects and sends signals between them instead of leaving them endlessly transmitting between themselves. It thus diminishes unnecessary signals, lessening the burden on the network.