Communications, Networks, the Internet and the World Wide Web Chapter 2.
-
Upload
scott-harmon -
Category
Documents
-
view
214 -
download
2
Transcript of Communications, Networks, the Internet and the World Wide Web Chapter 2.
![Page 1: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/1.jpg)
Communications, Networks, the Internet and the World Wide Web
Chapter 2
![Page 2: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/2.jpg)
Telecommunications
• What is it?
• Give examples
![Page 3: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/3.jpg)
Communications Network
• What is it?
• What is communications software?
![Page 4: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/4.jpg)
Communications Channel
• What is it?
• What are they made up of?
![Page 5: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/5.jpg)
Digital Signals
• What are they?
• What is an analog signal?
![Page 6: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/6.jpg)
Modem
• What is it?
• Where does this word come from?
• What is an internal modem?
![Page 7: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/7.jpg)
Network Interface card
• What is it?
![Page 8: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/8.jpg)
LAN
• What is a LAN?
• Who does it serve?
• What is a server?
![Page 9: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/9.jpg)
WAN
• What is a WAN?
• Who does it serve and how?
![Page 10: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/10.jpg)
Home Network
• What are they?
![Page 11: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/11.jpg)
School Networks
• Why have schools installed networks?• ?• ?• ?
• What does the server do in a school network?
![Page 12: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/12.jpg)
Wireless Revolution
• What is the wireless revolution that is taking place in education today?
![Page 13: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/13.jpg)
Computer Networks in Education
• What are the benefits?
• What is considered the most important benefit?
![Page 14: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/14.jpg)
Internet
• What networks make up the Internet?
• What are some uses of the Internet?
![Page 15: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/15.jpg)
ARPANET
• What is it?
• How did it come about?
• What is a host?
• Who is NSF and why are they important in the history of the Internet?
![Page 16: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/16.jpg)
Internet and Education
• How many schools are connected to the Internet? ?%
• What is Internet2 (I2)
• Who are members of Internet2?
![Page 17: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/17.jpg)
How the Internet Works
• What are• Packets• Routers• Packet switching• What is TCP/IP
![Page 18: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/18.jpg)
Terms
• ISP
• OSP
• WISP
![Page 19: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/19.jpg)
Ways to Connect
• Dial-up
• CATV
• DSL
• Satellite modem
• PLC
• Public Internet access point
![Page 20: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/20.jpg)
Internet Addresses
• Why use text names?
• Domain name
• Know part A of Figure 2-19 on page 82
![Page 21: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/21.jpg)
World Wide Web terms
• Hyperlinks
• Web page or Webpage
• Web site
• Home page
• URL
• http
• Web server
![Page 22: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/22.jpg)
Web Page
• Hypertext document contains what?
• Hypermedia document contains what?
![Page 23: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/23.jpg)
Three Types of Hyperlinks
• Target hyperlinks
• Relative hyperlinks
• Absolute hyperlinks
![Page 24: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/24.jpg)
Discovery Learning
• What is it?
• How does the WWW facilitate it?
![Page 25: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/25.jpg)
WWW Terms
• Webmaster
• HTML
• Web publishing
• Web browser
![Page 26: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/26.jpg)
Important information
• Mosaic – first graphical web browser
• Microbrowser
• History list
• Favorite or bookmark
![Page 27: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/27.jpg)
Web Searching
• Search tools
• Search engine
• Subject directory
![Page 28: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/28.jpg)
Multimedia on the Web
• What is multimedia?
• What is a plug-in?
• What are graphics?
• What is animation?
• What is an animated GIF?
![Page 29: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/29.jpg)
Multimedia (cont.)
• Audio
• What are some examples of players?
• Streaming audio
• Video
• Streaming video
![Page 30: Communications, Networks, the Internet and the World Wide Web Chapter 2.](https://reader036.fdocuments.in/reader036/viewer/2022070408/56649e685503460f94b63dca/html5/thumbnails/30.jpg)
Multimedia (cont.)
• Virtual Reality • What is it?• What are some examples?