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 physical system used to carry a communication signal from one system to another.


 WIRED WIRELESS
Send signals through cable, wire or tangible materials. Send signal through air or space.
Example:
  • Twisted-pair cable
  • Fiber-optic cable
  • Coaxial cablee
 Example:
  • Cellular radio 
    - Bluetooth, Wi-Fi, Wimax
  • Communication satellite
  • Microwaves



   
TYPE
 TERM
 DEFINATION
WIRED

TWISTED-PAIR CABLEImage result for TWISTED-PAIR CABLE




A networking cable consisting of wire strands twisted in sets of two and bound into a cable .
FIBER-OPTIC CABLE

Image result for FIBER-OPTIC CABLE





A networking cable that utilizes hundreds of thin transparent fibers over which lasers transmits data as light .
COAXICAL CABLE
Image result for COAXIAL CABLE]
 A networking cable consisting of center wire inside a grounded, cylindrical shield , capable of sending data at high speeds .
WIRELESS
 INFRARED
 Send signals using infrared light waves from one device to another.
COMMUNICATION SATELITE
 An earth - orbiting device that relays communications signals over long distances. Or Is a space station that receives microwave signals from an earth - based station .
MICROWAVE
 Radio waves that provide a high - speed signal transmission using electromagnetic radio wave .