Ajax, Computer Networking

Assignment Help:

Ajax is a relatively new set of techniques that, in a sense, implement some of the functionalities originally provided by RPC. Ajax is primarily used to build web applications with good performance and interactive responsiveness. The name comes from "Asynchronous JavaScript and XML" (though the general technique doesn't necessarily need to use JavaScript or XML).

The idea is to use JavaScript (or the equivalent) to run a web application in your browser, and do as much as possible on your computer, minimizing data exchanges over the network. Typically, Ajax applications are designed so that most data exchanges can be asynchronous and in the background. This means that you will be able to keep doing useful work with the application even on a relatively slow network connection.

Ajax resembles RPC because most of the processing can be done "remotely" on the client, instead of on the server. A good example of this technology is Google Maps. One reason why Google Maps works so well is because it explicitly uses the fact that most users own a fairly fast computer, and thus lots of the actual processing can be done locally. The user just needs to fetch asynchronously each piece (tile) of the map, and, when these are received, he or she can process them locally. If, on the other hand, we were to send every mouse movement to Google, and expect all processing to be performed remotely, we would end up with a very slow and impractical system. Notice that because Ajax is asynchronous, it scales very well with slow connections. Ajax does not block waiting for pieces of data to arrive beforemaking the systemusable. Instead (in the case of Google Maps), we notice that the user is allowed to manipulate the map (panning around, zooming in, etc) even when the map itself has not yet been completely received.


Related Discussions:- Ajax

Company access - computer network, Company Access Company  access is t...

Company Access Company  access is that in which  end systems are connected in connecting end  systems in a organization or educational  institution into the network. On  co

Hyper cube, Hyper Cube A Hypercube interconnection network is increamen...

Hyper Cube A Hypercube interconnection network is increament  of cube network. Hypercube interconnection network for n ≥ 3, can be distinct recursively as follow: For n = 3,

Show the distribution of name space, Q. Show the Distribution of Name Space...

Q. Show the Distribution of Name Space? Distribution of Name Space --Information for domain name space must be stored on multiple servers (DNS servers) to be efficient

Concept of connection between the pc and the cable modem, Concept of connec...

Concept of connection between the PC and the cable modem Even if downstream channel works at 27 Mbps, user interface is nearly always 10-Mbps Ethernet. There is no way to get b

Combine subtitution and transposition, how to own cipher to encrypt and dec...

how to own cipher to encrypt and decrypt message by combine both substitution ans transposition algorithm using c program

Explain the transport layer and network layer, Question: (a) Describe ...

Question: (a) Describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as TCP. (b) What is the initia

What is the role of ieee in computer networking, What is the role of IEEE i...

What is the role of IEEE in computer networking? IEEE, or the Institute of Electrical and Electronics Engineers, is an organization composed of engineers that issues and manage

What is the difference among tftp and ftp application, What is the differen...

What is the difference among TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) permits a local host to get files from a remote host but does n

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd