Pull technology is also referred as the client pull its one of the methods for the network communication in which user make request first and the data demand is fulfilled by the network servers. Its vice versa technology is known as push technology in which serve pushed tat to the clients automatically without the generation of the query or request by the users. Pull technology is also known as the pioneer of the network computing. It originated the concept of client server communication as it introduced the reliable architecture to support this function. Foundation of the network computation is based on the request of the multiple users to the centralized hub or server which processes all results simultaneously or turn by turn. This technology is still widely used in the hyper text transfer protocols, WebPages and website browsing allover the world, Major Companies like Yahoo, hotmail, google use pull technology to manage their webpage access requested by the users.
How Pull Technology Works?
Pull technology ca be also used in the simulation of the push technology both of these works separately in timely manner. First user pull pop3mail messages form the server and makes regular request for the other webpage. No to the user email will appeared to be pushed by the server ad he server pulls out the data requested by the user in periodic manner. The dialog boxes presenting success or failure of eth request is the pushed data by the servers to the users in the case of multiple servers load balancing techniques use in which server control switching as requires reconfiguring of pull and push functions. Web feeds such as RSS are logically pulled by the clients. There are several other functions that are categorized as the pull functions for either servers or clients. One should not confuse that this technology is basically client oriented and cannot be independently used by the network servers.
Usage and Applications of Pull Technology:
There is no specific range of the pull technology applicability but the major uses or functions can be categorizes into four wide functions
- Mail requesting
- Webpage loading
- Downloading via internet
- Web syndications
Requesting for the mail is the daily activity of the daily internet users and professionals who seek the arrived information in the mail box this request is transferred to the server through pull technology .similarly Downloading activity also request the desired data by pulling the downloading request to the server. Downloading data could be of any type. Web syndications are the periodic document updating for the daily news readers. This updating is done by the server on user requests. This pull technology sometimes feels like the push technology when external overview is taken but logically all the above tasks are done by the pull technology and push technology can be just assistant to above activities.
In the world of internet writing a single line is search engine or eneteing specific URL in the address bar is the client pull for the server. A single click results in the data retrieval in the pull technology in the pull technology. Some people have the misconception that these activities are the navigational task but in real the being to the client pull. To better understand it can be said that something being downloaded, requested and copied from the internet is the pulled item. A purchase of a book, Printing file, Extracting music files, Downloading softwares, new drivers, a photo from internet buckets such as flicker, Photo bucket etc, English language dictionaries, Online books and web mails all are the examples of the client pull.