Lecture-7: World Wide Web (WWW) & ECommerce

Lecture-7: World Wide Web (WWW) & ECommerce

1. LECTURE 07
WWW &
ECOMMERCE
Mr. Mubashir Ali
Lecturer(Dept. of Computer Science)
[email protected]

2. The World Wide Web
•The World Wide Web, or Web, consists of a
worldwide collection of electronic documents
(Web pages)
•A Web siteis a collection of related Web pages
and associated items
•A Web serveris a computer that delivers
requested Web pages to your computer
•Web 2.0refers to Web sites that provide a means
for users to interact
Discovering Computers 2010: Living in a Digital World
Chapter 2
2Pages 80 -81

3. The World Wide Web
•A Web browser, or browser, allows users to
access Web pages and Web 2.0 programs
Discovering Computers 2010: Living in a Digital World
Chapter 2
3Page 81
Internet
Explorer
FirefoxOpera
Safari
Google
Chrome

4. The World Wide Web
•A home page is the first
page that a Web site
displays
•Web pages provide linksto
other related Web pages
–Surfing the Web
•Downloadingis the
process of receiving
information
Discovering Computers 2010: Living in a Digital World
Chapter 2
4
Pages 82 -83
Figure 2-7
•Some Web pages are
designed specifically for
microbrowsers
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click iPhone
below Chapter 2

5. The World Wide Web
•A Web page has a unique address called a URLor
Web address
Discovering Computers 2010: Living in a Digital World
Chapter 2
5Pages 82 –83
Figure 2-8

6. The World Wide Web
•Tabbed browsingallows you to open and view multiple
Web pages in a single Web browser window
Discovering Computers 2010: Living in a Digital World
Chapter 2
6Page 84
Figure 2-9
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click Tabbed Browsing
below Chapter 2

7. The World Wide Web
•Two types of search tools are search engines and
subject directories
Discovering Computers 2010: Living in a Digital World
Chapter 2
7Page 85
Search
engine
Finds information
related to a
specific topic
Subject
directory
Classifies Web
pages in an
organized set of
categories

8. The World Wide Web
Discovering Computers 2010: Living in a Digital World
Chapter 2
8Page 85
Figure 2-10

9. The World Wide Web
•A search engine is helpful in locating items such
as:
Discovering Computers 2010: Living in a Digital World
Chapter 2
9Page 85
Images Videos Audio News
Maps
People or
Businesses
Blogs

10. The World Wide Web
•There are thirteen types of Web sites
Discovering Computers 2010: Living in a Digital World
Chapter 2
10Pages 88 –91
Figure 2-15
Portal News Informational Business/Marketing
Blog Wiki Online Social
Network
Educational

11. The World Wide Web
Entertainment Advocacy Web
Application
Content
Aggregator
Personal
Discovering Computers 2010: Living in a Digital World
Chapter 2
11Pages 91 –92
Figure 2-15

12. The World Wide Web
•Multimediarefers to any application that
combines text with:
Discovering Computers 2010: Living in a Digital World
Chapter 2
12Page 92

13. The World Wide Web
•A graphicis a digital
representation of
nontextinformation
•Graphic formats include
BMP, GIF, JPEG, PNG,
and TIFF
Discovering Computers 2010: Living in a Digital World
Chapter 2
13
Page 93
Figure 2-17

14. The World Wide Web
•Animationis the appearance of motion created
by displaying a series of still images in sequence
Discovering Computers 2010: Living in a Digital World
Chapter 2
14Page 94

15. The World Wide Web
•Audioincludes music, speech, or any other sound
–Compressed to reduce file size
•You listen to audio on your computer using a player
•Streamingis the process of transferring data in a
continuous and even flow
Discovering Computers 2010: Living in a Digital World
Chapter 2
15Pages 94 –95
Figure 2-20

16. The World Wide Web
•Videoconsists of full-motion images that are
played back at various speeds
Discovering Computers 2010: Living in a Digital World
Chapter 2
16Page 96
Figure 2-22
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click YouTube
below Chapter 2

17. The World Wide Web
•Virtual reality(VR) is the use of computers to
simulate a real or imagined environment that
appears as a three-dimensional space
Discovering Computers 2010: Living in a Digital World
Chapter 2
17Pages 96 –97
Figure 2-23

18. The World Wide Web
•A plug-inis a program that extends the capability
of a Web browser
Discovering Computers 2010: Living in a Digital World
Chapter 2
18Page 97
Figure 2-24

19. The World Wide Web
•Web publishingis the development and
maintenance of Web pages
Discovering Computers 2010: Living in a Digital World
Chapter 2
19Page 98
Plan a
Web site
Analyze
and
design a
Web site
Create a
Web site
Deploy a
Web site
Maintain
a Web
site
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click Web Page Authoring
Software below Chapter 2

20. E-Commerce
•E-commerceis a business transaction that occurs
over an electronic network
–M-commerceidentifies e-commerce that takes place
using mobile devices
Discovering Computers 2010: Living in a Digital World
Chapter 2
20Page 98

21. E-Commerce
Discovering Computers 2010: Living in a Digital World
Chapter 2
21Pages 98 -99
E-commerce
Business-
to-
consumer
(B2C)
Consumer-
to-
consumer
(C2C)
Business-
to-
business
(B2B)

22. E-Commerce
Discovering Computers 2010: Living in a Digital World
Chapter 2
22Page 99
Figure 2-25
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click Google Checkout
Software below Chapter 2

23. Other Internet Services
•E-mailis the
transmission of
messages and files via a
computer network
•An e-mail program
allows you to create,
send, receive, forward,
store, print, and delete
e-mail messages
Discovering Computers 2010: Living in a Digital World
Chapter 2
23
Page 101
Figure 2-26

24. Other Internet Services
Discovering Computers 2010: Living in a Digital World
Chapter 2
24Page 102
Figure 2-27

25. Other Internet Services
•A mailing listis a group of e-mail names and addresses
given a single name
–Subscribingadds your e-mail name and address
–Unsubscribingremoves your name
Discovering Computers 2010: Living in a Digital World
Chapter 2
25Page 103
Figure 2-28
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click E-Mail below
Chapter 2

26. Other Internet Services
•Instant messaging (IM) is a real-timeInternet
communications service
Discovering Computers 2010: Living in a Digital World
Chapter 2
26Page 104
Figure 2-29

27. Other Internet Services
•A chatis a real-time
typed conversation that
takes place on a
computer
•A chat roomis a
location on an Internet
server that permits
users to chat with each
other
Discovering Computers 2010: Living in a Digital World
Chapter 2
27Page 105
Figure 2-30
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click Chat Rooms
below Chapter 2

28. Other Internet Services
•VoIP(Voice over IP)
enables users to speak
to other users over the
Internet
–Also called Internet
telephony
Discovering Computers 2010: Living in a Digital World
Chapter 2
28Page 106
Figure 2-31

29. Other Internet Services
•A newsgroupis an
online area in which
users have written
discussions about a
particular subject
–Typically requires a
newsreader
•A message boardis a
Web-based type of
discussion group
Discovering Computers 2010: Living in a Digital World
Chapter 2
29Page 107
Figure 2-32

30. Other Internet Services
•FTP(File Transfer Protocol) is an Internet standard
that permits file uploadingand downloading with
other computers on the Internet
•Many operating systems include FTP capabilities
•An FTP server is a computer that allows users to
upload and/or download files using FTP
Discovering Computers 2010: Living in a Digital World
Chapter 2
30Page 107
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click FTP
below Chapter 2

31. Netiquette
•Netiquetteis the code of acceptable Internet
behavior
Discovering Computers 2010: Living in a Digital World
Chapter 2
31Page 108
Figure 2-33
Click to view Web Link,
click Chapter 2, Click Web
Link from left navigation,
then click Cyberbullying
below Chapter 2

32. Summary
History and structure of
the Internet
World Wide Web
Browsing, navigating,
searching, Web
publishing, and
e-commerce
Other Internet services:
e-mail, instant
messaging, chat rooms,
VoIP, newsgroups and
message boards, and FTP
Rules of netiquette
Discovering Computers 2010: Living in a Digital World
Chapter 2
32Page 109