DESCRIBING WEB TECH. TO A STARTER...

1. INTRODUCTION
Web Technologies are the Techniques
using which we can access various
resources on the Web.
Web technologies related to the interface
between web servers and their clients.
This information includes markup
languages, programming interfaces and
languages, and standards for document
identification and display.

2.  It facilitates communication, secure
information sharing and collaboration on the
World Wide Web .
 The basic Web technologies
that are used to implement the Web
portion of Web Services :
Core Web Technologies
Tunneling
Firewalls

3. Some Historical Details
Start of standard groups :
TCP, IP, TCP/IP, TELNET,FTP
SMTP
Archie
Gopher
Core Web Technologies :
Core Web Technologies  enable linking
and sharing documents

4. CHARACTERISTICS
Web Server
Eg – HTTPd (HTTP Daemon)
Web Browser
Eg – NCSA Mosaic
Netscape Communication Suite :
Netscape Messenger
Netscape Composer
Netscape Conference
Firewalls

5. WEBSITES AND MARK UP
LANGUAGES
Websites :
World Wide Web is a Grand global
collection of Websites and Internet
interconnects all the Sites.
Hypertext Document.
– HTML – HyperText Markup Language
– CSS – Cascading Style Sheets
– JavaScript
XML is a software and hardware
independent tool for carrying

6. How the Web Works
Your computer must have
communications hardware
with installed drivers (software)
– Modem card, ex: 56k Modem
– Network or NIC card, ex: Linksys
*
– Wireless Network card

7. How the Web Works
 Your computer must have Web browser
software
– AOL Online Software
– Microsoft Internet Explorer
– Netscape Navigator
– Other web services require
mail programs (Outlook) or
File Transfer programs
(WS_FTP)

8. How the Web Works
Your computer must be logged into the
Web
– Dialup has dialed, connected & user
has logged in
OR
– DSL/Satellite/Cable modem is on and
connected

9. WHAT LED TO WEB
TECHNOLOGIES SUCCESS
Simple Architecture –
HTTP,URL,HTML
Networked – value grows with data,
Services, users .
Simple for Users – Text , Graphics and
Links
Powerful – for people and Machines

10. EMERGING TECHNOLOGIES
The main revolutionary Web
Technologies :
Web 2.0
Web 3.0
Today's Latest web technologies :
AJAX
Ruby
Ruby on Rails

11. ADVANTAGES
Web Technology have led to :
 Web development
 Evolution of web-based communities :
social-networking sites,
video-sharing sites,
wikis, blogs.
 Business Revolution

12. CHALLENGES ENCOUNTERED
USING WEB TECHNOLOGIES
Limited Interactivity
Lack of Skills
Security Risks
Browser Compatibility
Lack of Web Development Tools
Standardization

13. SUMMARY
Most Web pages remote or local are a
combination of those Web technologies :
– Raw content, placed inside…
– HTML tags, formatted with…
– CSS rules, interactivity produced by…
– JavaScript scripts
Newer technologies like DHTML,
XHTML, and XML are based on these
– A little knowledge now can prepare