Home connectivity Skills: none IT concepts: local area network (LAN), LAN connectivity options, home-to-Internet connectivity options, wired and wireless.

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Presentation transcript:

Home connectivity Skills: none IT concepts: local area network (LAN), LAN connectivity options, home-to-Internet connectivity options, wired and wireless links This work is licensed under a Creative Commons Attribution-Noncommercial- Share Alike 3.0 License.

Where does this topic fit? Internet concepts –Applications –Technology (communication) –Implications Internet skills –Application development –Content creation

Internet connectivity Home Mobile and portable Organization Backbone

Connectivity within the home LAN The Internet How does the LAN connect to the Internet? How are the computers connected inside the LAN? LAN

Every Jetblue reservation agent telecommutes

Home local area network To and from the Internet

Home LAN connectivity technologies TechnologyApplication Trade Association Cat 5 cableCable with a twisted pair of copper wires WiFi (802.11)Wireless local area networksthe Wi-Fi Alliance BluetoothWireless personal-area networksBluetooth.org HomeplugUses existing electrical wiring Homeplug Powerline Alliance HomePNAUses existing telephone wiringHomepna.org Ultra widebandWireless high speedWimedia Alliance ZigBeeWireless control networksZigbee Alliance

Wired (cat 5 cable) access point links To and from the Internet

Wireless (WiFi) access point links To and from the Internet

TV and music equipment will be networked To and from the Internet

Typical home Internet access point Plugs for the Internet connection, four wired PCs or other Ethernet devices, and a WiFi radio

Other home LAN connectivity technologies TechnologyApplication Trade Association Cat 5 cableCable with a twisted pair of copper wires WiFi (802.11)Wireless local area networksthe Wi-Fi Alliance BluetoothWireless personal-area networksBluetooth.org HomeplugUses existing electrical wiring Homeplug Powerline Alliance HomePNAUses existing telephone wiringHomepna.org Ultra widebandWireless high speedWimedia Alliance ZigBeeWireless control networksZigbee Alliance

Connectivity between the home and the Internet The Internet How does the LAN connect to the Internet? How are the computers connected inside the LAN? LAN

Computer components Memory CPU Storage devices Input devices Output Devices Internet download Internet upload

Connectivity speed in context Memory CPU Storage device Internet download Internet upload 8 GB/s 32 MB/s 4 Mb/s 1 Mb/s

TechnologyProviderUS Market Medium to Home CableCable TV cos.Leading todayCoaxial cable DSLPhone cos.Second placePhone lines Optical fiberPhone and Cable TV cos. The future, 15% availability today Fiber to premises or neighborhood Power linePower cos.Roughly 0%Electrical wire Terrestrial wireless Sprint, small cos. Small town, rural Radio Satellite3 US providersDeep ruralRadio Most common urban link technologies

Follow the wires from home to your ISP

A telephone company central office Look for your central office

Inside the central office

Fiber to the neighborhood node or home AT&T video ready access device – fiber in, fiber or copper out.

DSL today Cable today Fiber is the future

We will eventually have fiber to our homes The question is who will own and control it?

Who owns your other utilities? Gas Water Sewer Electricity Telephone Television

TechnologyProviderUS Market Medium to Home CableCable TV cos.Leading todayCoaxial cable DSLPhone cos.Second placePhone lines Optical fiberPhone and Cable TV cos. The future15% availability today Fiber to premises or neighborhood Power linePower cos.Roughly 0%Electrical wire Terrestrial wireless Sprint, small cos. Small town, rural Radio Satellite3 US providersDeep ruralRadio Wireless options for home links

Terrestrial wireless outside of Austin TX This antenna is used for a radio link to an ISP in town There are thousands of wireless ISPs in rural and poor areas Sprint hopes to be a nationwide player competing with wired solutions

Satellite for deeply rural areas

Satellite is slow and expensive, but may be the only possibility This dish will probably serve a village or rural Internet kiosk.

A few questions

What is the speed of the connection between your home and the Internet? Which technology is used in the connection between your home and the Internet? Do you have WiFi connectivity within your home? Do you have wired connectivity within your home? Is your TV set connected to your home LAN? Is your music system connected to your home LAN?

Home connectivity Skills: none IT concepts: local area network (LAN), LAN connectivity options, home-to-Internet connectivity options, wired and wireless links This work is licensed under a Creative Commons Attribution-Noncommercial- Share Alike 3.0 License.