Transcript Internet Basic - Houston Public Library

Internet Basics 1
Internet Basic includes two lessons:

Lesson 1: The Internet

Lesson 2: The World Wide Web
Lesson 1: The Internet
Objectives
After completing this lesson, you will be able to:

Define the Internet and elaborate on its uses.

Identify the different components required to connect
to the Internet.

Identify the features of different types of Internet
connections.

Explain the term bandwidth in relation to the different
types of Internet connections.
About the Internet

The Internet is a collection of networks that are
connected together for exchange of information.

When the computer is connected to the Internet, it is
said to be online.
About the Internet (cont.)
You can use the Internet to:
o communicate with people all around the world
instantaneously.
o get the latest information on a current event.
o search for information
o buy and sell products.
o perform banking transactions.
Connecting to the Internet
To connect to the Internet, you need:



Computing device.
Connection device.
Internet Service Provider (ISP).
Connecting to the Internet (Cont)
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Computing device:
o Personal computer
o Portable computer (laptop)
o Mobile device (cell phone or handheld device)

Connection device:
o Modem
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An ISP is a company that provides Internet connectivity
to individuals, businesses, and organizations.
Connecting to the Internet (Cont)
Connection Methods:
 Physical (Cables)
 Wireless (Wireless Fidelity or the Wi-Fi card ).
Connecting to the Internet (Cont)
Wireless Technology
Devices that supports wireless technology :
o Wireless Fidelity or the Wi-Fi card.
o Access point (AP):
o
o
o
AP is used to connect a wireless computing
device to a wired network.
This wired network may belong to an ISP.
You can then connect to the Internet through
this ISP.
Types of Internet Connections
There are two different types of Internet connections:

Dedicated Internet connection

Dial-up Internet connection
Types of Internet Connections
(cont.)
Dedicated Internet connection:
o No need to request your ISP for a connection every
time you want to connect to the Internet.
o Many large organizations and universities use
dedicated Internet connections because these
organizations and universities need to use the
Internet extensively.
Types of Internet Connections
(cont.)
Dial-up Internet connection:
o
You need to connect to the ISP every time you want
to connect to the Internet.
o
You can disconnect from the Internet after
completing your work.
o
Is usually less expensive and has a slower data
transfer rate compared to a dedicated Internet
connection.
Bandwidth

Bandwidth is the amount of data that can be
transmitted over a network in a certain amount of
time.

Bandwidth is measured in:
o Mbps (megabits per second).
o Kbps (kilobits per second).
o bps (bits per second).
Bandwidth (cont.)
The actual rate of transfer of data will vary depending
on:
o ISP’s equipment.
o Type of Internet connection.
o Number of people using the same connection at
one time.
Bandwidths of Different Networks
Types of Connection
Data Transfer Rates
Dial-up
56.6 Kbps
Digital Subscriber Line (DSL)
Uploads
Downloads
128 Kbps
512 Kbps
Cable Modem
36 Mbps
Wireless Technology
30 Mbps
Lesson 2: The World Wide Web
Objectives
After completing this lesson, you will be able to:

Define WWW and its relation to the Internet.

Explain how Web addresses work.

Explore Web sites by using a search engine.

Explain how to perform transactions over the Web.

Define browser plug-ins and explain their uses.
Introduction the World Wide Web
The World Wide Web (WWW or simply, the Web):

Refers to the collection of information that is
accessible on the Internet.

The information is in the form of text, pictures, and
sound.

The Web is a very popular service on the Internet.
Introduction the World Wide Web (cont.)
Web and the Internet are technically two different
terms:
o The Internet connects multiple computers and
forms a network on which a computer can
communicate with another computer.
o The Web is a way of accessing and sharing
information over the Internet by using Web
browsers.
Web Components

Web browser is a software program that enables you
to view and interact with various resources on the
Web.

Web page is a document on the Web. It is a formatted
text document that a Web browser can display.

Web site is one or more Web pages that reside on a
single server.
Web Addresses
o Every Web site on the Web is stored on a computer
that is part of a vast network.
o To access a Web site, you need to access the
computer on which the Web site is stored.
o Each computer on the Web is identified by a unique
address, known as the Internet Protocol (IP) address.
o The IP address is a numeric address that specifies
the exact location of a computer on the Web.
Web Addresses (cont.)

A Web site for a domain is accessed with the help of a
unique alphanumeric address known as the Web
address.

The Web address is also known as the Uniform
Resource Locator (URL), which specifies the protocol
to be used and the exact location of the Web site.

A protocol is a standard method of transferring data
between different computers.
Web Addresses (Cont.)
http://www.microsoft.com/learning/default.asp
Element
Description
http://
Indicates the protocol to be used to access a file.
www
Indicates that the Web site is on the World Wide
Web.
microsoft
Indicates the name of the Web site.
.com
Indicates the type of domain.
/learning/default.asp
Indicates the path of the document.
Examples of domain name suffixes.
Suffix
Description
.com
Indicates that the Web site is for a commercial organization.
.edu
Indicates that the Web site is for educational institutions, such as
schools, colleges, and universities.
.net
Indicates that the Web site is for a network-oriented organization or
for an ISP.
.org
Indicates that the Web site is for a nonprofit organization.
.info
Indicates that the Web site is informative in nature.
.museum
Indicates that the Web site is used for a museum or for an
individual of the museum profession.
Working with Internet Explorer

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1
4
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
3
2
3

Please follow these
steps to practice:
Open Microsoft Digital
Literacy site
Click on Internet
module.
Click on “Launch Elearning.
Click on the “Play”
button.
Follow steps on the left
screen.
E-Commerce
E-commerce refers to the business transactions made over
the Internet, such as buying and selling items online.
E-Commerce (cont.)
Example: Purchasing Museum Online Tickets
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Step 1: access the museum’s Web site.
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Step 2: create a new account.

Step 3: select the date and the number of tickets you want
to purchase.
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Step 4: provide your credit card details along with the
shipping address.
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Step 4: record your transaction code that you can use for
any further queries related to this purchase.
Using Browser Plug-ins

A Web page may contain content in the form of animation,
video, or audio files. To view these files, you need
additional programs known as plug-ins.

Plug-ins provide added functions by allowing the Web
browser to access and run files that are included in Web
pages.

Some popular plug-ins are available with most of the Web
browsers.

Certain plug-ins that you need to install or update to be
able to view Web pages with new features and file formats.
Using Browser Plug-ins
Download Plug-Ins
1) In the Address bar, type http://www.msn.com, and
then click Go.
2) On the left column of the MSN home page, click
Video.
3) Click Download Microsoft Windows Media Player.
4) To download the plug-in, click Download Now twice.
5) Click Run.
6) Click Run.
7) Click I Accept.
Questions
Next Class
Internet Basics 2
Includes lesson 3:
Communicating on the Internet