Web technologies allow access to resources on the World Wide Web and facilitate communication and information sharing. Core web technologies include HTML, CSS, JavaScript, and standards for document identification and display that enable linking and sharing of documents. Emerging technologies like AJAX, Ruby on Rails, Web 2.0, and Web 3.0 have led to advances in web development, online communities, and business.

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