Pull Technology and Push Technology

Pull Technology and Push Technology, Pull Technology and Push Technology Pull Technology and Push Technology

Pull Technology

Pull technology refers to a computer or program (the pull client) that requests information from another computer or program. The World Wide Web is an example of pull technology because a page is downloaded only after the client requests it from a server. 

Push Technology

Push technology sends data to a computer or program (the push client) without a request. One computer or program decides when to send new information to another. For instance, a Web server can be configured to send data to a client every hour, such as weather forecasts, or send urgent weather bulletins immediately.

The first push application to receive much notice was PointCast (now called EntryPoint), an application separate from the browser that runs like a screen saver. When your computer is idle, information specified by the user (stock quotes, sports scores, announcements relevant to a particular industry) is "pushed" to the client and displayed on the screen. Another example is Microsoft's Active Channel, which is supported by Internet Explorer 4.0 and later. Active Channel pushes information to browsers using Microsoft's proprietary Channel Definition Format (CDF).

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