CCS
CMPTR Chapter 1 Part 3
Introduction to
Lecture Shortcuts
Internet
Computers and Society
Assignment 7 End of Chapter Questions
Assignment 8 Vocabulary PDF
Network
Collection of computers and devices connected
Allow users to share hardware, software, and data
Internet
Hardware that connects a computer
network linking smaller computer
networks worldwide
What is the World Wide Web?
Collection of web pages available on
Difference between
Internet and World Wide Web (WWW)
Internet
Hardware
connected
via
networks
WWW
Internet
Service
Providers
What:
Company offers access to Internet for a fee
Who:
AT & T
Frontier
Verizon
Sprint
Selecting
Type of device (phone vs. computer)
Internet Connection (mobile, cable)
Location (city, rural)
Accessing the Internet
Connection Availability Speed
Conventional Dial Up Cheap (Frontier) 56 Kbps is slow Cable Internet Access Fast (Charter Cable) 5-20 Mbps
Digital Line Subscriber
DSL Direct Connection (Frontier) Doesn’t tie up phone line Fast
1-7 Mbps Satellite Clear view southern sky (Hughes) 5-20 Mbps Broadband over fiber Fiber Optic
Fast 10-50 Mbps
Mobile Wireless Mobile phone network
Web Site: collection of web pages belong to one company
Web Server: stores web pages; continually connected to
Internet
Web browser: allows viewing of web pages. For example:
Firefox, Internet Explorer, Google Chrome
Internet Address
IP addresses
Numeric addresses identifies a computer
207.46.197.32
Google “what is my IP address”
Hard to Remember
So……
Domain names
Text based address identifies a computer; corresponds to IP
Domain Name Example
http
://www.
calhoun.k12.il.us
/
hs
/
index.html
http is standard protocol identifier
Calhoun.k12.il.us is the web server hosting the page
Hs is the folder the high school page is in
Index is the name of the high school page
Exhibit 1-15
Domain Name
Text based name corresponds with numeric IP
address (207.46.197.32)
Domain name is registered
Domain name parts are separated by a period
Far right part of name is top level domain
Identifies organization
Edu for education, gov for government, com for
Sample top-level domains (TLDs)
Original TLDs Intended use
.com Commercial businesses.
.edu Educational institutions .gov Government organizations
.int International treaty organizations .mil Military organizations
.net Network providers and ISPs .org Noncommercial organizations
Newer TLDs Intended use
.aero Aviation industry .biz Businesses
.fr French businesses .info Resource sites .jobs Employment sites
.mobi Sites optimized for mobile devices .name Individuals
.pro Licensed professionals
What is
URL?
Uniform Resource Locator
Address of web page
Enter URL in address bar and web
page displays
Displayed page is main page or home
page.
First page viewed in organization’s web
site.
Home page is displayed with top-level
What is
surfing the
web?
Using web browser to view pages
Firefox, Internet Explorer, Chrome
Type URL into address bar of
search engine to go to home page
Use favorites to bookmark to keep
Computers
and
Society
Positive Society Changes
Cars, microwaves, toys, phones, bikes
Processing banking transactions
Exploring space
Computers smaller, faster, smarter
Provided technological advances in medicine, car design, online
classes, speech recognition
Negative Society Changes
Unsolicited emails, harmful programs, legal and ethical
issues,
Big brother data collection and personal privacy (CIPS can
lower thermostat remotely)
Stress to body
Intellectual
Property
Rights
Legal rights to intellectual property
Copyright exclusive right to publish, reproduce, distribute,
perform or display work
Remain in effect 70 years Not required to display copyright notice Must obtain permission to use
Review examples on Page 23 #1-20
Trademark
Work phrase or symbol identifying a service or company (M in McDonalds)
Plagiarism
Presenting someone else’s work as your own
Ethics
Standards of moral conduct include telling the truth, not stealing
songs by downloading, not copying several copies of a software,
not using school printer for personal use, not cheating
Environmental
Concerns
Environmental friendly computer use
Minimize use of power and paper
Energy Star Labels
Unplug devices to save vampire costs
Disposal of electronics P27
Ergonomics
Science of fitting a work environment to the people
who work there
Properly adjusting furniture to reduce strain
Providing keyboards that reduce hand and wrist strain
Providing document holders to limit turning of head
Antiglare screens
Wrist supports
Etrash
Computer waste in land fill
Toxic and hazardous materials
700 different chemicals in a desktop
Arsenic, lead, mercury, cadmium
Ethics
Standards of moral conduct
Telling the truth
Beliefs vary according to culture
Personal ethics
Apply to personal behavior
Business ethics
Behavior at work
Computer ethics
Your turn: Explore Concepts
1. Define computer network2. What is the difference between the Internet and the World Wide Web? 3. What is an Internet Service Provider?
4. What is a home page?
5. What is fastest way to access Internet?
6. What is difference between web site and web page?
7. What is difference between IP address and domain name? 8. What is a URL?
9. What has been a negative impact of the Internet on society? 10. What has been a positive impact of the Internet on society? 11. What is ergonomics?
12. What is etrash? 13. What is ethics?
14. What are intellectual property rights?
15. What is one environmental concern with computers?
Common Core: RI.1, RI.3, RI.4, RI.10, W.4, W.5, W.6, L.1, L.4, L.6
• Answer questions using Word or
One Drive
• Use MLA style
• Include a footer with document
name
Your Turn Vocabulary Assign 7
Internet vs. World Wide Web
Web Site
Web Page
ISP
IP address
Domain name
Web server
Web browser
URL
Surfing the web
Intellectual property rights Copyright
Fair use Trademark Plagiarism
Digital rights management
software
Digital watermarks Ethics
Computer ethics Business ethics
Repetitive stress injury Green computing
Eco-label E-trash
Go to http://www.kitzkikz.com/flashcards/Fla and generate a PDF of flash cards for chapter vocabulary
