This slide is for Form 1 Semester 1 usage

1. Network, Intranet & Internet
At the end of the lesson, students should able to:
• Define what is Network, Intranet & Internet.
• Explain how Network, Intranet & Internet works.
• Define what Is Web Browser.
•Understand what is World Wide Web.
• Explain how Web Browser works and how to find
information.
• Define and Explain how E-mail Works.
• Know how to apply Security & Privacy when surfing.

2. Network
 Collection of hardware, interconnected
by communication channel that allows
us to share resources & information

3. How Network Works
Computer Network Cable – (RJ45)
Network Hub
Server

4. Intranet & How It Works
 Secure Connection of computers
using Internet Protocol (IP) to share
resources within an Organization.
Resources are shared in
a server.
User can access within
the organization network
and cannot be access
outside organization
network.

5. Internet
 Internet is an interconnected computer
networks that use standard Internet
Protocol Suite (TCP/IP).
 It connects billions of users that consists of
academic, business, private or government
networks.

6. How Internet Works
CLIENT
WEB SERVER OTHER
MULTIPLE
SERVER
SERVER
OF:
THE INTERNET
Modem Broadban 3G Network
d
MULTIPLE
INTRANET
Router-
OF:
Modem
PC Laptop I Pad 2

7. World Wide Web
 System of information distribution
using the Internet.
 Linked document written based on
HTML (Hyper Text Markup Language)
 Contains Graphic, Audio, Video, etc.
 Navigation Links: allows user
interaction with the web.
 Data transfer uses HTTP (Hyper Text
Transfer Protocol)

8. Web Browser
 Application software for
retrieving, presenting and surfing
information on the internet.
 It access the World Wide Web using
URL (Uniform Resource Identifier)
example : www.yahoo.com.
 Example of Web Browser:

9. Internet Explorer
HOME TOOLS
ENTER URL NEW TAB
HERE
MENU
BAR
FAVOURITE
S
BAR
SEARCH
BOX
VIEW
FAVOURITES, FEEDS &

10. Finding Information on the net
 Using Search Engine
◦ www.google.com
◦ www.yahoo.com
◦ www.bing.com
 Online Encyclopedia
◦ www.wikipedia.com

11. Email
 Electronic Mail eg.
cikgujohan@yahoo.com
 Method of exchanging digital messages
from an author to one or more recipients.
 Compose, Receive, Forward, Reply, CC
& BCC, Delete, Archive, and so on.
 Share/attach
documents, file, song, picture.
 Popular free email provider:
◦ www.gmail.com
◦ www.mail.yahoo.com

12. Security & Privacy while
surfing
 Protect your PC with Updated
Antivirus.
 Never give out personal information
(username / password) – number etc.
 Social Network: Never use your real
name / picture.
 Never download games/movies/songs
from entrusted site.
 Always run full computer scan to avoid
malware from phishing our data.