home and personal communication systems

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home and personal communication systems 

satellite communication

-satellites in space are used to beam signals from one continent to another

-use radio signals to send data

wireless

-data travel throughs air rather than cables

-can acces intenet on portable devices such as mobiles, alptop, PDA's 

- at home, wireless netowrk enable people to use computers anywhere they can receive a radio signal 

KEYWORDS: hotspot: region where internet can be accessed wirelessly

wifi: trademark for products that meet certain standars for transmitting data wirelessly 

internet service provider (isp): a compnay that provide a use of internet connection

advatange of wireless

-not restricted to where you can work

-work while on the move (dongle)  

-fewer or no wires to trip over

-no cost because of sinking wires

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