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- 3. Internet Backbone Refers to main internet pathway connections Consists of mostly fiber-optic cables that span the globe over land and under sea Network Service Providers (NSPs) are large telecom companies that make up the internet backbone
- 4. Domain Name Server (DNS)
- 5. TCP/IP TCP-Transmission Control Protocol: IP- Internet Protocol: IP addresses Works behind the scenes Data is transferred over the internet in packets The internet is a packet switching network
- 6. Internet Service Provider (ISP) Connection Type Pros Cons Cable Modem Fast, Always on connection, Expensive, Slower output Multiple users as user activity increases simultaneously Cellular Data Connection Can be used for portable Expensive, Mediocre speed devices, constantly getting faster (4G introduction) Digital Subscriber Line Always on connection, Can Slow speed (DSL) use phone and internet simultaneously, No competition Dial-Up Inexpensive Slow, Can’t use simultaneously Digital Satellite Service High speed internet, Expensive set up, Weather (DSS) Wireless, Always on impacts performance connection Broadband Over Power Delivers internet to remote Limited availability in USA Line (BPL) areas, Uses electrical outlets
- 7. Client/Server Network design in which the computer or program (client) requests a service from another computer or program (server) that performs the action The internet is based on a client/server relationship Server Client
- 8. Peer-to-Peer (P2P) Network design that does not utilize a central server Information is transferred from client to client Limewire Clients act like servers Frostwire Article BitTorrent
- 9. Router Network device that manages network traffic Crucial to internet communications Wireless Internet is possible because of routers Internet is a packet switched network
- 10. Port VGA S- HDMI Port Video
- 11. Voice over Internet Protocol (VoIP) Voice communications using IP over data networks Unified communications
- 12. Internet2 Is a research and development consortium To develop and deploy advanced network applications and technologies for tomorrow’s Internet Important because world depends on it NOT a new internet, but a group focused on improving current structure
Editor's Notes
- Introduction Video
- Title Page-WordArt
- Refers to the main internet pathways and connections which are made up of national and international communication networks that are owned by major telecom companies (Verizon, AT&T). Consists of mostly fiber-optic cables that span the globe over land and under sea to provide connections between individuals, companies, organizations and governments. Some NSP’s are: Verzion, Sprint, AT&T, etc. NSP’s enable internet users to connect to their networks through utility stations called points of presence (POPs).
- Maintains database of all domain names and IP addressesSupplies information to internet nodes and routers working to get data packets to their destinationTranslates domain names to IP addressesThere are 13 root DNS servers scattered around the world
- Works behind the scenes to allow many different types of networks and devices to join together in an immense global network. A protocol that defines how information travels across the internet. A data packet is a small group of bytes that includes the data being sent.The applications divide up information into small packets to make efficient use of the network.(Logo is hyperlinked)TCP-Transmission Control Protocol: Enables two hosts to establish a connections and exchange informationIP- Internet Protocol: defines the format and the way the scheme is addressed for the packetsIP addresses are four numbers separated by periods with numbers ranging from 0-255Works behind the scenesData is transferred over the internet in packetsThe internet is a packet switching network
- ISP’s provides individuals and organizations with access to the Internet. Work as liaisons between internet users and telecommunications companies that own the internet backbones.Largest ISP is Comcast Cable.
- The internet is based on a client/server relationship. Server computers are powerful computers that can accommodate many simultaneous user requests.
- Information is not distributed from central source, but rather shared among multiple sourcesPeople who run P2P software make a portion of their file systems available to other participants to access directlyP2P- SOPA and PIPA Article Even if DNS didn’t do anything to stop the SOPA and PIPA regulations, it did not get passed to stop P2P file sharing because of its significant use.
- Network device that manages network traffic by evaluating messages and directing them over the fastest path to their destinationInternet is a packet switched network. Data that travels over the internet is broken into small data packets to traverse the internet more efficiently
- Port is an address used by clients and servers that is associated with a specific service.Clients/Server software uses ports with the assistance of telecommunications software to determine which service the data packet is requesting.Port numbers help servers organize the data packets that they manage, sending packets to the correct software for service.
- Businesses are migrating to VoIP; they use it for conferences, interviews, and other business necessities Saves a lot of moneyEliminates the need for traditional costly phone systems by making use of corporate data network for voice callsAlso offers additional services like the ability to make phone calls and check voicemail from computerWhen a system combines voice, video, and data communications into one interface, it is called unified communications(The Skype picture is a Hyperlink)(The ooVoo picture is a Hyperlink)
- (Internet2 logo also hyperlink)Text in the slide.