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Glencoe Introduction to Multimedia


Chapter 2

Multimedia Online

1



Chapter

Multimedia Online

2


Section 2.1 The Internet and the


World Wide Web


Section 2.2 Introduction to the Web


Section 2.3 Web Resources and Guidelines


Contents

Glencoe Introduction to Multimedia


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Section 2.1 The Internet and the World
Wide Web


The Internet and the World Wide Web
work together, but they are not the same
thing.


Ethical guidelines must be followed to stay
safe online.

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The Internet Versus the Web

The Internet is Hardware


It is a huge network that connects computers all
over the world.


These computers communicate with each other.


The Internet allows users to access the Web.

The Web is Software


It is a complicated software system used on the
Internet’s network.


The Web visually displays information in a user
-
friendly way.




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The Internet Versus the Web

How are the Internet and the Web
different?

The Internet is hardware, while the Web is
software. The Internet provides the
equipment, tools, and hardware that allow
users to access the World Wide Web.
The Web is a system that visually displays
information in a user
-
friendly way.

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How the Internet Works

You must be connected to the Internet to use its
resources.





Computer with
Communication
Line

High
-
speed
Telecommunication
Networks

Servers Send Files
to Individual
Computers

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How the Internet Works

You must be set up to access an Internet Service
Provider (ISP) to connect to the Internet. ISP’s offer
three common types of Internet connections.






Type of
Connection

Requirements

Advantages

Disadvantages

Dial
-
up

Modem; standard
telephone line

Inexpensive

Slow
; disconnects
suddenly

Broadband

Hardware
provided by ISP;
cable, satellite, or
DSL

Instant access;

faster
transmission
speeds

Expensive; makes

computer
vulnerable

Wireless

Wireless
connection

Makes the
Internet

portable

Limited
accessibility and
reliability

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How the Internet Works

What are three types of Internet
connections?

Three types of Internet connects are
dial
-
up, broadband, and wireless.

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Internet Resources

Computers on the Internet must communicate to
share information.


Rules, or protocols, that specify how data needs
to be formatted and transmitted are used for
communication between computer systems.


In order to “talk” to one another, computers
must follow the same protocols.



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Internet Resources

Different types of protocols are for different
purposes.


Protocols to communicate data over the Internet
include transmission control protocol (TCP) and
Internet protocol (IP)


Every computer connected to the Internet
must have a unique IP address.


File Transfer Protocol (FTP) provides a
standardized method of uploading and
downloading files on the Internet.



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Internet Resources

The Internet provides many resources. The chart
below lists examples of Internet resources, many of
which use multimedia elements.




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Internet Resources

What are two examples of Internet
resources?

Internet resources include e
-
mail,
listservs, FTP sites, newsgroups or
forums, chat rooms, Internet relay
chats, instant messaging, and online
gaming.

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Section 2.2 Introduction to the Web


Browsers are used to navigate the Web.


URLs identify the unique locations of Web
pages and types of Web sites.


Search tools can be utilized to find
information on the Web.

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Web Basics

Web Browsers


Browers let you view Web pages and other
multimedia productions.


Keep in mind that multimedia files often require
more time to load onto computers and handheld
devices.

Hyperlinks


These can be words, phrases, or graphics that
connect Web pages and allow you to “surf” from
one page to another.





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Web Basics

Plug
-
ins


Plug
-
ins might work with a browser to offer the
ability to play audio or video, view animation or
3D graphics, or access interactive media.


Some plug
-
ins enable browsers to use streaming
media so that the computer does not have to
download the entire audio or video file before it
starts playing.



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Web Basics

How can browers plug
-
ins help you
play multimedia files?

Plug
-
ins such as streaming media
allow you to start playing back large
audio or video files as the computer
begins to receive them rather than
waiting for the entire file to download.

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Uniform Resource Locators

Uniform Resource Locators (URLs) enable browsers
to retrieve page files on the World Wide Web.


Most URLs are made up of four parts. The figure
below illustrates those four parts.




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Types of Web Sites

Most Web sites can be categorized based on their
main purpose.







Web site developers must keep the purpose in mind
when including multimedia elements.



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Types of Web Sites

What are two types of commercial
sites?

Two types of commercial sites are
E
-
commerce sites and corporate
presence sites.

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Finding Information on the Web

Search engines can help you find information online.

When you use a search engine you are using a
search query. Two main types of queries are
keyword searches and Boolean searches.


A keyword search uses an important word or
words related to the topic you are trying to
locate.


A Boolean search specifies how the engine
should use the keywords for a more focused
search.



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Finding Information on the Web

What are three common Boolean
operators?

The three common Boolean
operators are “and”, “or”, and “not”.

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Section 2.3 Web Resources and



Guidelines


Ethical, social, and legal guidelines govern
the use of online resources.


When using online resources for personal or
business purposes, copyright and trademark
laws must be followed.


Resources must be cited properly.

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Using Web Resources

In recent years, multimedia Web resources have
enhanced the way we communicate and collaborate.


Web technology offers many different ways to
communicate, including resources such as blogs,
vlogs
, and social networking sites.


E
-
mail is the most frequently used form of online
communication.




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Using Web Resources

Collaboration and Socializing


People enjoy using multimedia tools available
through social networking sites, wikis, media
-
sharing sites, and social bookmarking sites.


These tools are intended to promote
collaboration and socialization.


Other Web site services include video, photo,
and music sharing.




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Using Web Resources

Sharing Multimedia Resources


Web sites have opened up the ways to share
multimedia projects and presentations.


Podcasts allow you to distribute audio or video
recordings via the Web.


Sites like SlideShare allow you to share
multimedia presentations. Users can view
presentations and offer feedback.




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Using Web Resources

What is a podcast?

A podcast is a recorded audio or
video broadcast that is distributed
via the Web.

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Social and Ethical Issues

Sharing, collaborating, and interacting globally are
important skills but there are risks in using online
tools.


Keep your personal identity private for your
safety and security.


Read all the guidelines in an Acceptable Use
Policy before you sign it.


Use netiquette when interacting online and
report cyberbullying to a trusted adult.



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Social and Ethical Issues

What is the purpose of an AUP?

The purpose of an AUP, or acceptable
use policy, is to regulate online use
through guidelines that you must sign
before using the Web site.

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Legal Issues

Look for the terms of use (TOU) agreement before
you download or use files from a site.

The chart below explains the differences among the
three main types of software.



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Copyright Laws

Copyright laws cover work on the Internet as well as
other media.

You cannot claim a copyrighted or trademarked work
as your own or use it without permission.






Intellectual Property


Ideas and concepts


Books, music,
movies, software,
inventions, and
trademarks

Fair Use


Small portions used
for educational
purposes


A few paragraphs
from a book or a
short excerpt from a
song or video

Public Domain


Works not covered by
copyright law
available for use to
everyone


Expired copyrights
and works created
before copyright laws

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Legal Issues

Unfortunately, unethical people use the Internet. To
make sure the information you find is reliable, use
the criteria below.


Determine relevance of the information.


Evaluate reliability.


Examine how recent it is.


Determine whether it is verifiable.





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Legal Issues

You must always cite the information obtained
online.

There are different style guidelines for formatting
citations, so you should ask your teacher which
guideline to use.

The example below is formatted according to the
Modern Language Association (MLA) guidelines.






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Legal Issues

What does the term “fair use” mean?

The term “fair use” means that small
portions of a work may be used for
educational purposes.

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Chapter Summary


The Internet is a huge network that connects
computers all over the world using
communication lines.


The World Wide Web is a way of sharing
information via the Internet.


ISPs allow people to connect to the Internet
through dial
-
up, broadband, and wireless
connections.


Every Web page has a unique address.


There are many social, ethical, and legal issues
associated with using the World Wide Web.


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Chapter 2

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