home connectivity skills: none it concepts: local area network (lan), lan connectivity options,...
Post on 23-Jan-2016
226 views
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
Technology ApplicationTradeAssociation
Cat 5 cable Cable with a twisted pair of copper wires
WiFi (802.11) Wireless local area networks the Wi-Fi Alliance
Bluetooth Wireless personal-area networks Bluetooth.org
Homeplug Uses existing electrical wiringHomeplug PowerlineAlliance
HomePNA Uses existing telephone wiring Homepna.org
Ultra wideband Wireless high speed Wimedia Alliance
ZigBee Wireless control networks Zigbee 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
Technology ApplicationTradeAssociation
Cat 5 cable Cable with a twisted pair of copper wires
WiFi (802.11) Wireless local area networks the Wi-Fi Alliance
Bluetooth Wireless personal-area networks Bluetooth.org
Homeplug Uses existing electrical wiringHomeplug PowerlineAlliance
HomePNA Uses existing telephone wiring Homepna.org
Ultra wideband Wireless high speed Wimedia Alliance
ZigBee Wireless control networks Zigbee 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
Inputdevices
OutputDevices
Internetdownload
Internetupload
Connectivity speed in context
Memory
CPU
Storage device
Internetdownload
Internetupload
8 GB/s
32 MB/s
4 Mb/s 1 Mb/s
Technology Provider US MarketMedium to Home
Cable Cable TV cos. Leading today Coaxial cable
DSL Phone cos. Second place Phone lines
Optical fiber Phone andCable TV cos.
The future, 15%availability today
Fiber to premisesor neighborhood
Power line Power cos. Roughly 0% Electrical wire
Terrestrialwireless
Sprint, smallcos.
Small town,rural
Radio
Satellite 3 US providers Deep rural Radio
Most common urban link technologies
Follow the wires from home to your ISP
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?
GasWaterSewerElectricityTelephoneTelevision
Technology Provider US MarketMedium to Home
Cable Cable TV cos. Leading today Coaxial cable
DSL Phone cos. Second place Phone lines
Optical fiber Phone andCable TV cos.
The future15%availability today
Fiber to premisesor neighborhood
Power line Power cos. Roughly 0% Electrical wire
Terrestrialwireless
Sprint, smallcos.
Small town,rural
Radio
Satellite 3 US providers Deep rural Radio
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.