This document provides an overview of a session objective that introduces web servers, browsers, how they communicate, ASP (Active Server Pages), and a small ASP application example. The key topics covered are how web servers store and distribute web pages to clients/browsers, how browsers make HTTP requests to web servers and receive HTTP responses, an introduction to ASP for creating dynamic web pages on the server-side, and advantages of using ASP like browser independence and improved security.

1. SESSION OBJECTIVE
1. Introduction
2. Web Server
3. Browser
4. How Web Server and Browser Communicate
5. Introduction to Asp
6. A small application program on ASP
7. Advantages of ASP

2. Introduction
What is a Server?
Server provides service that is always responds to requests generated by clients.
What is a Client?
A client always requests for service to the server.
Web Server
It is a piece of software running on a computer that distributes WebPages to user on
demand and provides an area where the page of a website can be stored, organized
and accessed. The machine that runs the web server software can be a remote
machine sitting at the other site of your network or even on the other side of the
world or it could be a home machine
Browser (Client)
The browser is generally known as the client. Browser is a piece of software which
request for information to the server and the server responses to it.
How The Web Server And Browser Communicate:-
The message passed from the browser to the web server is known as a HTTP
(Hyper Text Transfer Protocol) request. When the web server receives the request, it
checks to find the appropriate page. If the web server finds the page it parcels up the
HTML contain within addresses and sends them back across the network. If the web
server cannot find the requested page it issues a page containing an error message
like 404: page not found and it parcels up and dispatches that page to the browser.
The message send from the web server to the browser is known as the HTTP
response.

3. WEB SERVER
FILE
PAGE1
.HTML
FILE
FILE
CLIENT
MACHINE/BROSWER
REQUEST
http//www.wrox.com/page1.htm
PURE HTML
REQUESTING A PURE HTML PAGE

4. WEB SERVER
WEB PAGE
BROWSER
HTTP REQUEST
(HTTP:/WEB SITE)
HTTP RESPONSE

5. ASP AND ITS APLICATIONS:-
ASP: - Active server page is a powerful server based technology from
Microsoft design to create dynamic and interactive HTML (Hyper
Text Markup Language) pages for the fsWorld Wide Web and intranet.
ASP is now considered as an integral part of working with windows on
the internet. It works by allowing us the functionality of a
programming language. Whenever a user browses to our website and
request one of our ASP pages the ASP code is processed at that time
by a special piece of software the web server. These processing
generates the HTML, which is then passed to the browser and used to
create the page itself on the user screen.
ASP is not the first technology offers these features but it is
undoubtedly one of the most powerful and widely used in industry and
crucially it is one of the fastest. Active server pages are different from
much Microsoft technology in the following respect:

6. While ASP must be executed on a computer that supports it, we can
view ASP driven web pages from any computer and with any Modern
browser. This has enabled developer to enhance their web pages with
interactive features even to solve common business problem to such an
extend that, that pages with the .ASP suffix are first becoming as
common as those with .HTML suffix.
1. Most important advantage that ASP has is its ability to create pages
that are sensitive to factors such as time and place and user identity
and previous choices and actions.
2. ASP is used to customize our web pages to the specific need of each
individual user. It means that text, images, tables, forms and even the
layout of the page can be selected automatically at the time of user
request the page and to suit that user’s requirement.
3. ASP requires the knowledge of HTML and scripting language.
(VBscript) to build application.

7. ASP was officially announced to the world by Microsoft on
July 16, 1996, codenamed Denali. A beta version was released in
November 1996, and ASP version 1.0 was shipped on December
12, 1996.it gained much wider recognition when it was bundled
with of Microsoft Internet Information Server (IIS) web server
suite in march1997 and it has been gaining steadily its popularity
since then.
ASP VERSIONS
Windows 2000 IIS 5.0 (Internet Information Server)
Window NT server 4.0 IIS 2.0
Window NT PWS (Personal Web Server)
Workstation 4.0 PWS
Windows 98 PWS version 3.0

8. WHAT DO I NEED TO RUN ASP:-
1. In order to write pages a text editor or other web development tool
is required.
2. In order to publish the pages a web server that supports ASP is
needed.
HOW IT WORKS:-
After installation of IIS/PWS an Inetpub directory is created. That
provides sub directories and it contains:-
• iis sampleshomepage contains some example of ASP pages.
• iis samplessdk contains as set of sub directories that hold ASP
scripts which demonstrate the various ASP objects and components
• Scripts is an empty directory which is a useful place to store any
ASP scripts created by user.
• Web pub is also empty. This is a special virtual directory, used for
publishing files via the publish wizard. This directory only exists in
windows 2000 professional edition.

9. • Wwwroot is the top of the tree for web site. This is used as the data
utility web directory. It also contains a number of sub directories
which contain various bits and pieces of IIS. This directory is
generally used to contain sub directories which hold the pages that
make up the website.
•ftprootmailroot and nntproot should for the top of the tree for any
site that uses FTP, mail or news services, if installed.
TESTING WEB SERVER:-
After installation of IIS/PWS it needs to check whether the web
server is running or not .For this reason http://localhost is typed in the
address bar of the browser to see the homepage (default page).

10. SPECIAL EDIITOR TO CREATE AND EDIT ASP
SCRIPTS:-
·Microsoft visual Interdev 6.0-
Microsoft Interdev 6.0 is a professional programming tool for
Designing dynamic web application.
·Microsoft front page-
Front page is another tool for creating and designing web
page but it is not friendly at visual Interdev.
·allayers home site-
This is one of the best non Microsoft web page editors.
·notepad-
Notepad is a time honored text editor

11. <html>
<!--html code-->
<head>
<title>itishree.com</title>
</head>
<body bgcolor="yellow">
<form name="frm" action="name.asp" method="post">
<center>
<p><h1>wel come to centre for it education</h1></p>
<p><h2>mca 2nd semster talk</h2></p>
<p align="center">
<font colcor="red">
<b>today's date is <%=date%> <!-- asp code or vbscript-->
<br>
<br>
today's time is <%=time%></b> <!--asp code or vbscript-->
</p>
<p>name please</b>
<input type=text size="20" name="iti"></p>
<p align="center" color="red">
<input type="submit" value="submit" name="btn_clk" style="color: red">
</p>
</center>
</form>
</body>
</html>

13. <head>
<title>itishree.com</title>
</head>
<body bgcolor="yellow">
<center>
<p><h1>wel come to centre for it education</h1></p>
<p><h2>mca 2nd semster talk</h2></p>
<p align="center">
<font colcor="red">
<b>
today's date is <%=date%> <!-- asp code or vbscript-->
<br>
<br>
today's time is <%=time%> <!--asp code or vbscript-->
</p>
<p align="center">
thank u
<%=ucase(request.form("iti"))%> <!-- asp code or vbscript-->
</p>
</font>
</b>
</center>
</body>
</html>

15. ADVANTAGES:-
·Allows you to run programs in programming languages that are not
supported by browser.
·Enables the program to design dynamic web applications browser
independently, without resource to client. Side programming features
such as java applets, dynamic html, and activex controls, all which are
browser specific.
·Can provide the browser with data does not reside at the client.
·often makes for free quicker loading times then with client side
dynamic web technologies such as java applets or activex control,
because in the end you are actually only down loading a page of html.
·Provides improved security measures, since you can write code which
can never be viewed from the browser.