Process of world wide web, Computer Engineering

Assignment Help:

Q. Process of World Wide Web?

When you type a URL in a web browser, this is what happens:

1. If URL contains a domain name, browser first connects to a domain name server and retrieves corresponding IP address for the web server.

2. Web browser connects to web server and transmits an HTTP request (via protocol stack) for the desired web page.

3. The web server receives the request and checks for desired page. If page exists, the web server sends it. If server can't find the requested page, it will send an HTTP 404 error message. (404 means 'Page Not Found' as anyone who has surfed the web probably knows.)

4. Web browser receives page back and connection is closed.

5. Browser then parses through the page and looks for other page elements it needs to complete web page. These generally include images, applets etc.

6. For each element needed, browser makes additional connections and HTTP requests to server for each element.

7. When browser has finished loading all images, applets etc. page will be completely loaded in browser window.

Most Internet protocols are specified by Internet documents termed as a Request for Comments or RFCs. RFCs may be found at many locations on the Internet.

WWW is an Internet navigation tool which helps you to find and retrieve information links to other WWW pages. WWW is a distributed hypermedia environment consisting of documents from around the world. Documents are linked using a system termed as hypertext, where elements of one document may be linked to specific elements of another document. Documents may be located on any computer connected to Internet. The word 'document' isn't limited to text however may include video, databases, graphics and a host of other tools.

World Wide Web is explained as a 'wide area hypermedia information initiative among to give universal access to large universe of documents'. World Wide Web provides users on computer networks with a consistent means to access a range of media in a simplified fashion. A popular software program to search Web is known as Mosaic, Web project has modified the way people view and create information. It has created first global hypermedia network.

Once again WWW provides an integrated view of Internet using servers and clients. Clients are programs which help you seek out information whereas servers are the programs which find information to the clients. WWW servers are placed all around the Internet.


Related Discussions:- Process of world wide web

Define constraints, Define Constraints Constraints can be defined as P...

Define Constraints Constraints can be defined as Preconditions (input values) and Post Conditions (output values). Preconditions on functions are constraints which input value

Discuss program testing and debugging in detail, Discuss program testing an...

Discuss program testing and debugging in detail. In program debugging and testing significant steps are as follows: a. For the program, construction of test data b. Analy

Determine what part of global array to work on thread number, Q. Determine ...

Q. Determine what part of global array to work on thread number? #include void subdomain(float x[ ], int istart, int ipoints) { int i; for (i = 0; i x[istart+

Identify which stores most no. of bits in memory store, Which of the memori...

Which of the memories stores the most number of bits ? Ans. 5Mx8 = 5 x 220 x 8 = 40M (max).

Explain the fetch cycle, Q. Explain the Fetch Cycle? The beginning of e...

Q. Explain the Fetch Cycle? The beginning of every instruction cycle is the fetch cycle and causes an instruction tobe fetched from memory.   The fetch cycle comprises four

What do you eman by processors hypercube, Q. What do you eman by Processors...

Q. What do you eman by Processors Hypercube? This is precise to in the hypercube. Every processor is portrayed by set of nodes of graph and different arcs are represented with

Instruction queue in bus interface unit, Q. Instruction Queue in Bus Interf...

Q. Instruction Queue in Bus Interface Unit? Instruction queue is employed to store the instruction ‘bytes' fetched. Please conceren two points here: that it's (1) A Byte (2) Qu

Differentiate between public key and secret key encryption, What are the di...

What are the different between Public Key Encryption and Secret Key Encryption? Differentiate between Public Key Encryption and Secret Key Encryption: A cryptographic sys

Drawing sequential circuit on paper, design a sequential circuit that conti...

design a sequential circuit that continuously computes the function 2X + 3 or 3X + 1 where the variable X is a three-bit unsigned integer available on a serial interface. A special

Natural and artificial intelligence, Since the term artificial intelligen...

Since the term artificial intelligence was defined in the 1950s, experts have disagreed about the difference between natural and artificial intelligence. Can computers be pro

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