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
Copyright © by The McGraw-Hill Companies, Inc. All rights reserved.
Glencoe Digital Communication Tools
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
22
Glencoe Digital Communication Tools
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.”
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 37-392.1 Digital Image Technology
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 37-392.1 Digital Image Technology
What can you do with a digital camera that is not possible with a regular camera?
digicom.glencoe.com Lesson 2.1, Rubric
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
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.
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 40-462.2 Communicating Online
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.
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 40-462.2 Communicating Online
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 40-462.2 Communicating Online
How has the Internet changed the way we communicate?
What is the purpose of a weblog?
Give uses for a webcam.
digicom.glencoe.com Lesson 2.2, Rubric
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
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.
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 47-492.3 Internet Security and Acceptable Use
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 47-492.3 Internet Security and Acceptable Use
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.
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 47-492.3 Internet Security and Acceptable Use
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.
digicom.glencoe.com Lesson 2.3, Rubric
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
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.
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
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.
digicom.glencoe.com Lesson 2.4, Rubric
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 54DIGITAL CAREER PERSPECTIVE
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.”
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
pg. 54DIGITAL CAREER PERSPECTIVE
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
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.
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
Chapter AssessmentChapter Assessment
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
Chapter AssessmentChapter Assessment
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
Glencoe Digital Communication Tools
Communicating with Digital Technology Communicating with Digital Technology 22
Chapter AssessmentChapter Assessment
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