Meaning – The term push, refers to a networkoperation that sends information to resources.
Push services are often based on information preferences expressed in advance. This is called a publish/subscribe model. A client subscribes to various information channels provided by a server; whenever new content is available on one of those channels, the server pushes that information out to the client.
Push is sometimes emulated with a polling technique, particularly under circumstances where a real push is not possible, such as sites with security policies that require rejection of incoming HTTP/S requests.
Push technology, which is also called “server push,” can be used to send news data, stock updates, and other information from the Internet to a user’s computer.
Example of usage – “With push technology, people no longer need to constantly check news sites, e-mail, or other data sources to see if they have been updated. The result is a more efficient means of receiving information.”