Upload
annis-leonard
View
231
Download
4
Tags:
Embed Size (px)
Citation preview
Succeeding with Technology
The Internet and Web
Internet Technology Internet Communications Web technology Web Applications
Please discontinue use of cell phone and turn off ringer
Succeeding with Technology
4.1
Internet Technology
What is the Internet?
• Computer Network• Internet Backbone• Internet Service Provider
(ISP)• Routers• Dial-up Connection
• Cable modem connection
• DSL connection• DSS connection• Protocols• TCP/IP
• IP Address• Client/server• Port• Peer-to-peer (P2P)
Key Terms
Visualization of the Internet’s topology from http://www.cybergeography.org/atlas/topology.html
What is the Internet?
Succeeding with Technology
A Brief History of the Internet
Listen to ethan zuckerman as he talks about the history of the Internet
http://www.zakon.org/robert/internet/timeline/
Succeeding with Technology
Internet Growth
www.internetworldstats.com
The Web arrives
Succeeding with Technology
Internet Hardware
The Internet backbone consists of the main pathways and connections of the Internet owned primarily by telecom companies.
Verizon’s/MCI’s UUNet carries 28% of Internet traffic
http://en.wikipedia.org/wiki/Internet_backbone
Succeeding with Technology
Internet Hardware
Network Service Providers Major telecom
companies that provide the Internet backbone.
Network Service Providers27.9% Verizon/MCI/UUNET
10.0% AT&T
6.5% Sprint
6.3% Genuity (level 3)
4.1% PSINet
3.5% Cable & Wireless
2.8% XO Communications
2.6% Verio
1.5% Qwest
http://navigators.com/isp.html
Succeeding with Technology
Internet Hardware
Points of Presence (POPs) Facilities provided by Network Service Providers
that allow users to connect to the Internet backbone.
Internet Service Providers Companies that provide users with access to the
Internet. Dial-up vs. DSS vs. Cell vs. DSL vs. Cable
Top 22 ISP’s: http://www.isp-planet.com/research/rankings/usa.html
Succeeding with Technology
Internet Hardware
Routers: computing devices that manage network traffic by evaluating data packets and routing them to their destination. The Cisco CRS-1 router is
controlled by a unique self-heating and self-defending operating system designed for always-on operation while scaling system capacity up to 92 Tbps. Routers such as this one manage traffic on the Internet Backbone.
7’
http://computer.howstuffworks.com/router1.htm
Succeeding with Technology
Packet Switching
A packet switching network divides all network data into small packets for faster, more efficient delivery.
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I learned more than I thought in those wonderful lectures that I had previously written you about….
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I learned more than I thought in those wonderful lectures that I had previously written you about….
An email message
Succeeding with Technology
Packet Switching
learned more than I thought in those wonderful lectures that I had previously written you about….learned more than I thought in those wonderful lectures that I had previously written you about….
Divided into packets
looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that Ilooks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it
Succeeding with Technology
Packet Switching
Packet headers added
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it
Message 3761HZA Date May 1 Packet 1 of 3From [email protected] [email protected]
Message 3761HZA Date May 1 Packet 1 of 3From [email protected] [email protected]
learned more than I thought in those wonderful lectures that I had previously written you about….
learned more than I thought in those wonderful lectures that I had previously written you about….
Message 3761HZA Date May 1 Packet 3 of 3From [email protected] [email protected]
Message 3761HZA Date May 1 Packet 3 of 3From [email protected] [email protected]
looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I
looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I
Message 3761HZA Date May 1 Packet 2 of 3From [email protected] [email protected]
Message 3761HZA Date May 1 Packet 2 of 3From [email protected] [email protected]
Succeeding with Technology
Packet Switching
Each packet sent individually over the network
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it
Dear Joan,
Hi! How’s it goin’? Just finished midterms, and it
Message 3761HZA Date May 1 Packet 1 of 3From [email protected] [email protected]
Message 3761HZA Date May 1 Packet 1 of 3From [email protected] [email protected]
looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I
looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I
Message 3761HZA Date May 1 Packet 2 of 3From [email protected] [email protected]
Message 3761HZA Date May 1 Packet 2 of 3From [email protected] [email protected]
learned more than I thought in those wonderful lectures that I had previously written you about….
learned more than I thought in those wonderful lectures that I had previously written you about….
Message 3761HZA Date May 1 Packet 3 of 3From [email protected] [email protected]
Message 3761HZA Date May 1 Packet 3 of 3From [email protected] [email protected]
Demo at http://acns.fsu.edu/~zeisler/usedu.html
Succeeding with Technology
Internet Protocols
Protocols are rules that govern how data is transmitted and received.
They govern all Network and Internet communications: The Internet The Web Email Instant Messaging Etc.
Ports are numeric addresses assigned to specific network services, and used in packet headers to direct data packets to the appropriate service. See http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
Ports are numeric addresses assigned to specific network services, and used in packet headers to direct data packets to the appropriate service. See http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
Succeeding with Technology
Internet Protocols TCP/IP
Transaction Control Protocol (TCP): Divides data into packets for transmission, and reassembles data from packets upon delivery.
Internet Protocol (IP): Controls the delivery of packets between IP addresses.
IP Address a 32-bit number that identifies each sender or receiver of
information that is sent in packets across the Internet. 10000000.11111111.10110101.00010111 128.255.181.29 www.fsu.edu http://checkip.dyndns.org/
Succeeding with Technology
Network Architectures Client/Server Peer-to-Peer
Original Napster vs. Kazaa
Succeeding with Technology
4.2
Web Technology
What is the Web?
• Hyperlink• HTTP• Web browser• Web server• URL
• HTML• XML• Web authoring
software• Cookies
• Plug-in• Content Streaming
Key Terms
Succeeding with Technology
The Web
The World Wide Web is an Internet-based service that provides convenient access to information through hyperlinks.
Succeeding with Technology
Web Protocols & Standards
HTTP: Hypertext Transfer Protocol defines and controls communication between Web server and client (Web browser).
URL: Uniform Resource Locator is the fancy name for a Web address.
http://www.icann.org/
http://www.cs.fsu.edu/~baldauf/presentations/swt/2/index.html
Domain name
Succeeding with Technology
Web Protocols & Standards
HTML: Hypertext Markup Language is the formatting language used to define the appearance of Web pages. Try View Source in IE
XML: New and popular standard for describing and classifying data in Web pages and other Web services.
Succeeding with Technology
Web Protocols & Standards
Many of today’s popular applications store files in XML format for easy data sharing.
Succeeding with Technology
Web-Authoring Software
Web Authoring Software allows you to create HTML documents using word-processor-like software
Macromedia’s Dreamweaver software allows you to design Webpages and Websites using a WYSIWYG interface.
Succeeding with Technology
Programming the Web
Cookies are data generated by a Web server, and stored on your computer.
Used to target marketing or customize a webpage when you next visit the server.
Demowww.amazon.com
IE/Tools/Options/Settings/
Succeeding with Technology
Web Browser Plug-Ins
A plug-in is a program that works with the browser to offer extended services –typically the ability to view animations or video, listen to music, or interact with the Webpage.Popular plug-ins include Flash, Quicktime
& latest Windows Media Player. Demos:http://harrypotter.warnerbros.comhttp://getitnow.vzwshop.com/vcast.home.dohttp://www.toyota.com/vehicles/2005/prius/int360.html
Succeeding with Technology
Web Browser Plug-Ins
Content streaming allows media files to play while they are being delivered by the Web server.
www.movies.com
Succeeding with Technology
4.3
Internet and Web Applications
How are they used?
• Search engine• Web Portal• Synchronous
communication• Asynchronous
communication
• E-mail• E-mail attachment• Instant messaging (IM)• Chat• SMS Text messaging• Blogs
• Video Conferencing• Telecommuting
Key Terms
Succeeding with Technology
The Internet
The Web
Communications
E-commerce
InformationDistribution
The Internet & Web
Succeeding with Technology
Web Tools
Search Engines: Helps us find information on the Web through keyword searches of databases built by spiders or crawlers (http://a9.com/).
Subject Directories: A catalog of sites collected and organized by people.
Portals: Web pages that serve as entry points to the Web.
Succeeding with Technology
1. Face-to-face
2. Video conferencing
3. Phone (voice)
4. Instant messaging/Chat
5. Voice mail
6. Email
7. SMS Texting
Syn
chro
nous
Asy
nchr
onou
sE
ffectiveness
Co
nve
nie
nce
Communication and Collaboration
Succeeding with Technology
Researchers at Caltech’s VRVS lab are able to video Conference from 36,000 feet above the Pacific Ocean.
Researchers at Caltech’s VRVS lab are able to video Conference from 36,000 feet above the Pacific Ocean.
Succeeding with Technology
Worlds Chat with avatars in a 3D virtual environmnt
Succeeding with Technology
Blogs (Web logs) are websites created to express one or more individual’s views on a given topic (ie. http://www.bloglines.com/topblogs) A blog aggregator is software that allows you to subscribe
to numerous blogs (ie. http://www.bradsoft.com/feeddemon/)
A Podcast is an audio file that contains a recorded broadcast distributed over the Internet for use on PC or Mobile media device. Podcast Aggregator: provides access to podcasts that
may be set to automatically download to your PC (iTunes).
RSS (Really Simple Syndication) A web-content distribution technology
Communication and Collaboration
Succeeding with Technology
Vlog (Vodcast) Video-based blogs (www.vlogdir.com/)
Consumer Generated Media is the recent trend of the general public capturing and reporting the news.
Communication and Collaboration
www.current.tv
How does consumer genereated media compare to main stream media?
How does consumer genereated media compare to main stream media?
Succeeding with Technology
Voice over IP (VoIP)
Technology that enables network managers to route phone calls over the same network they use for data.
Future of Phones: http://newsroom.cisco.com/dlls/video_audio_archive/?all Also see Video Telephony
Succeeding with Technology
Residential VoIP
• Residential VoIP, Broadband Phone• Phone service over a broadband Internet
connection.
http://www.voipchoices.com/vonage.html
Succeeding with Technology
Video Conferencing Video conferencing is a technology
that combines video and voice communications along with document sharing.
Telecommunications is the process of working from locations away from the office by using telecommunications technologies.
Telecommunications is the process of working from locations away from the office by using telecommunications technologies.
Succeeding with Technology
News and Information
On-line news services allow you to drill-down into the story to get background information and details.
Webcasting uses the Web to deliver news video footage.
Webcasting uses the Web to deliver news video footage.
Succeeding with Technology
Education and Training
Life-long learning is your future…NETg Offers…• 1,850 IT and
desktop e-Learning courses
• 1,300 business and professional development e-Learning courses
• 2,000 up to date, searchable, IT, Desktop and Business Books from Safari
• 250 instructor and student manuals for ILT training
Succeeding with Technology
E-commerce
E-commerce has opened up new opportunities in buying and selling.
Succeeding with Technology
Travel
The Web has transformed the travel industry.
Succeeding with Technology
Employment and Careers
The Web assists us in researching career possibilities: Selecting a career Researching companies Networking with colleagues Searching want ads Creating Resumes & Professional
Websites
Succeeding with Technology
Information
Research on the Web Subject Directories, and Search Engines Issues of reliability Library Web sites Research Databases
Consumers are increasingly reliant upon online resources to ease and inform major life events.
Consumers are increasingly reliant upon online resources to ease and inform major life events.
Succeeding with Technology
The Future Internet
Internet2 is a research and development consortium led by over 200 U.S. universities and supported by partnerships with industry and government to develop and deploy advanced network applications and technologies for tomorrow’s Internet.
The National LambdaRail (NLR), or Internet3 is a cross country, high-speed fiber-optic network dedicated to researching high-speed networking applications.
Succeeding with Technology
High-Speed Internet Applications
Interactive Collaboration
Long distance collaboration and education.www.accessgrid.com/
Two dancers in different locations dance together.
Succeeding with Technology
High-Speed Internet Applications
Real-time access to remote Resources
Scientists can control the astronomical telescopes at Gemini observatories in Hawaii and Chile from any location on Internet2.
Succeeding with Technology
High-Speed Internet Applications
Large-scale Multisite Computation and Data Mining
Shared Virtual Reality
Consider the future ofwww.secondlife.com
Succeeding with Technology
Chapter 4 Questions?
Don’t forget to turn your phone on!!