1. Wednesday, September 19, 2018
What Is the Internet?
A global network connecting millions of computers. Countries are linked into exchanges of data, news and opinions.
Web Vs. Internet
Internet Origins
CBC – Internet Emerging Trend

2. Internet – Terms To Know
IP Number/Domain Name
Client/Server
HTML Code
TCIP/IP, HTTP, FTP
Firewall
Bandwidth
Cookies

3. How do you get on? Via Internet Service Provider (ISP)
Wednesday, September 19, 2018
How do you get on?
Via Internet Service Provider (ISP)
Via direct network connection using a shared high-speed line on Local Area Network (LAN)
Wireless
Mobile – Internet Stick
Satellite
3G - Services

4. Connecting via Internet Service Provider
Wednesday, September 19, 2018
Connecting via Internet Service Provider
Gives you direct access via a DSL, dialup or cable connection
Offers a few services, however their main service is just a connection
What services does your ISP provide to you?

5. What services does your ISP provide to you?
Who has Shaw Cable Internet?
Who has a TELUS connection?

6. Wednesday, September 19, 2018
Bandwidth The bit capacity of a channel, usually measured in bits per seconds
Digital Subscriber Line (DSL) or Asymmetric DSL (ADSL)
Optimal: 6-8 Million bits per second (Mbps) downstream
Optimal: 512 Thousand bits per second (Kbps) upstream
Transmission speeds depends on quality of the phone lines, equipment, distance from the PC to switching office (18,000 ft.)
Which one is shaw/telus
Simple 2 question survey
Shaw or Telus?
Why go with one over the other?

7. Bandwidth Cable modem Optimal: 10 Mbps downstream
The bit capacity of a channel, usually measured in bits per seconds.
Cable modem
Optimal: 10 Mbps downstream
Optimal: 2 Mbps upstream
Broadcast Media: Transmission speeds depend on how many people are connected to distribution hub, everyone connected to same hub receives everyone else’s downloads. (What might be problems?)

8. Connect via Network Connection
Wednesday, September 19, 2018
Connect via Network Connection
Wired into Internet via LAN
Types of line connections:
DSL line (9 M bps)
T-1 line (1.544 M bps)
T-3 line ( M bps)
Differences between DSL, T1, T3

9. IP Numbers & Domain Names
Wednesday, September 19, 2018
IP Numbers & Domain Names
Every machine on the Internet has a unique identifying number, called an IP Address.
IP stands for Internet Protocol, which is the language that computers use to communicate over the Internet.
A typical IP number looks like “ ” To make it easier for us humans to remember, IP addresses are mapped onto domain names like
One domain name can represent more than one IP address

10. Publishing up a web site
Wednesday, September 19, 2018
Publishing up a web site
Is your domain name taken?
What is a web server?
A Client is the person/computer requesting for the information. A Server is the person/computer sending the information.

11. URL: Access Methods TCP/IP
Wednesday, September 19, 2018
URL: Access Methods TCP/IP
TCP/IP –
Transmission Control Protocol / Internet Protocol
The suite of communications protocols used to connect hosts on the internet. so that they can send information back and forth for a period of time in the form of packets.
Packet switching refers to a set of protocols in which messages are divided into packets before they are sent. Each packet can follow different routes to its destination.
Once all the packets forming a message arrive at the destination, they are recompiled into the original message.

12. URL: Access Methods HTTP
Wednesday, September 19, 2018
URL: Access Methods HTTP
Hypertext Transport Protocol
Short for HyperText Transfer Protocol, the underlying protocol (list of rules) used by the World Wide Web.
HTTP defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands like sending and receiving webpages.

13. URL: Access Methods FTP
Wednesday, September 19, 2018
URL: Access Methods FTP
ftp:// File Transfer Protocol
- ftp://
File Transfer Protocol, the protocol (set of rules) for exchanging files over the Internet. FTP works in the same way as HTTP is used for transferring Web pages from a server to a user's browser.
FTP is most commonly used to download a file from a server using the Internet or to upload a file to a server (e.g., uploading a Web page file to a server).

14. Wednesday, September 19, 2018
Cookies
A Cookie is text file that a Web server can store on a user's hard disk.
Cookies allow a Web site to store information on a user's machine and later retrieve it.
A Web page may contain images or other components stored on servers in other domains. Cookies that are set during retrieval of these components are called third-party cookies.
Windows XP - C:\Documents and Settings\<username>\Cookies\
Windows Vista C:\Users\<username>\AppData\Roaming\Microsoft\Windows\Cookies\

15. Wednesday, September 19, 2018
Firewalls
A firewall is a program or hardware device that filters the information coming through or leaving through the Internet connection to you private network or computer system.
Best Firewalls 2010

16. Internet Appilcations in Education
Elluminate
WebQuests
Online Reference Collections
Video Conferencing