glencoe digital communication tools communicating with digital technology chapter contents lesson...

Glencoe Digital Communication Tools

Communicating with Digital Technology Communicating with Digital Technology

Chapter Contents

Lesson 2.1 Digital Image Technology (pg. 37)

Lesson 2.2 Communicating Online (pg. 40)

Lesson 2.3 Internet Security and Acceptable Use (pg. 47)

Lesson 2.4 Ethics and Netiquette (pg. 50)

Chapter Assessment

22pg. 35-57

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Communicating with Digital TechnologyCommunicating with Digital Technology

You Will Learn To

Describe the uses of digital cameras and camcorders

Explore different webcams on the Internet

Describe weblogs and begin planning your own

Explain the uses of e-mail

Describe an acceptable use policy

Identify security risks of computer use

Explain ethical uses of technology and netiquette

Define ethics and netiquette

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Communicating with Digital Technology Communicating with Digital Technology 22

pg. 37-392.1 Digital Image Technology

Digital CamerasYou can use a digital camera to: Take as many photos as you want

Instantly delete those you do not like

Connect directly to your computer to edit, print, and e-mail your photos

ResolutionA digital camera’s picture quality can be measured byits resolution, or number of pixels.

resolution The amount of detail in a digital image, measured in pixels.

pixel A single point in a digital image.

Digital pictures usually have a file extension of .jpg or .jpeg, pronounced “dot jay-peg.”




Digital CamcordersA digital camera records media clips and movies, allowing you to: Create movies

Edit a video and add special effects with your computer

DVD RecordersA DVD recorder’s many uses include the ability to: Record and save television shows

Copy home movies from VHS tapes

Play music CDs

Store digital pictures




What can you do with a digital camera that is not possible with a regular camera?

digicom.glencoe.com Lesson 2.1, Rubric



pg. 40-462.2 Communicating Online

The Weblog RevolutionA weblog can be created by anyone to: Share opinions and information

Keep in touch with a circle of online friends

Allow reading access to thousands of online readers

E-MailWith electronic mail (e-mail), you can: Communicate quickly with people all over the world

Send a message to either one person or a group

Attach files such as newsletters, digital photos, or a spreadsheet budget

weblog An online journal that is updated almost every day by its author.




ListservsE-mail’s flexibility allows anyone to join a listserv. A listserv is a large e-mail group formed by people who share a common interest.




webcam A small camera that connects to a computer and sends an image over the Web.

WebcamsYou can use a webcam for many purposes, including: One-on-one video chats

Educational purposes

Entertainment

Some webcam sites include: Alamo Cam

Bonaire Reef Cam

Fall Foliage Cams

Mount St. Helens Volcano Cam

Philadelphia International Airport




How has the Internet changed the way we communicate?

What is the purpose of a weblog?

Give uses for a webcam.




pg. 47-492.3 Internet Security and Acceptable Use

Security Risks Both individuals and businesses can suffer from unauthorized access problems on the Internet which can lead to: Stolen information

Damaged files, hard drives, or Web sites

Denial of ServiceIn a denial of service attack, someone uses computer tricks to overload and shut down a company’s Web site.




The CulpritsTwo of the worst culprits of security risks are: Crackers steal information or maliciously break down

copyrighted software’s security protection

Hackers gain unauthorized access to computer systems, often to steal usernames or passwords




Firewall ProtectionMany people use a firewall to guard against hackers, spyware, and other security risks.

Acceptable UseBusinesses and schools often require anyone using their computer systems to sign an acceptable use policy (AUP).

An AUP: Contains rules for using an organization’s Internet and

computer network

Prohibits unethical or illegal purposes

firewall A software program that acts as a barrier between a computer and the Internet to protect the computer from unauthorized access.




Do you think schools and businesses have the right to make people sign an AUP?

Do they have the right to take away computer privileges from someone who violates the AUP?

Explain your answer.




pg. 50-542.4 Ethics and Netiquette

The Importance of EthicsEthics should be practiced both on and offline by: Respecting the privacy of personal information

Using courtesy in online discussion forums

Not accepting illegal copies of software

NetiquetteOnline misunderstandings and errors in netiquette can often be prevented by avoiding common tactics such as: Flaming, or using obscene or angry language

Typing in all capital letters, which comes across as shouting online

ethics Society’s rules for what is right and what is wrong.

netiquette The manners people use in electronic communications.



pg. 50-542.4 Ethics and Netiquette

A friend tells you about a Web site that lets you download research papers. All you need to do is put your name on it and pretend you wrote it. Is this ethical? Explain your answer.




pg. 54DIGITAL CAREER PERSPECTIVE

Keeping People Moving

Javier Lopez is a maintenance specialist who keeps a major transportation organization’s vehicles running safely and efficiently.

In his job, Javier uses a PDA (personal digital assistant) and walkie-talkie mobile phone to: Order new parts

Communicate with co-workers

Quickly reach someone during urgent situations

Purchase technical and specialized equipment without the burden of unnecessary paperwork

Name:Javier Lopez

Job Title:Light Rail Train Maintenance Specialist

Career Cluster:Transportation, Distribution, and Logistics




Keeping People Moving

Javier says, “I work in this industry because I’ve always enjoyed watching trains. I also love the challenge of mechanical projects, and this career keeps me well-equipped to meet those challenges.”




Question

How do modern advances in technology help someone in Javier’s position?

Possible answers include: Allow faster and easier communication with customers

and co-workers

Remove some time-consuming paperwork, allowing more time to be spent on the work itself

Speed up the production and delivery of new parts and equipment

Provide easier and quicker access to help during emergencies and urgent situations



Chapter AssessmentChapter Assessment

Question 1

What is resolution, and how is it measured? (Lesson 2.1)

Answer:Resolution is the amount of detail in a digital image. Resolution is measured in pixels. More pixels mean better resolution, which means better picture quality.




Question 2

Give examples of two types of Internet security risks. (Lesson 2.3)

Possible Answers include: Unauthorized access, including that of hackers,

crackers, and spyware

Denial of service (DoS) attacks




Question 3

What trends do you see happening in communicating online for both home and business users?

Answers may include currently popular trends of using: E-mail Instant messaging Discussion lists Online chats Video conferencing




Answer 3

Another trend is the use of the wireless technology of: PDAs

Cell phones

Other handheld devices for text messaging, videoconferencing, and accessing e-mail and the Internet


Impact of Digital Communication ToolsImpact of Digital Communication Tools22

Unit Resources

For more resources on this unit, go to the Online Learning Center at http://www.digicom.glencoe.com.

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