·  Consists of a single copper wire surrounded by insulating material, braided metal and plastic coating

·  Data signal pass through a coaxial cable as an electrical signal

• usually used in Cable Television (CATV) network wiring

·  Consists of one or more twisted copper wires

·  Data signal pass through a twisted pair cable as an electrical signal

·  Usually used in network cabling and telephone systems

 
·  Consists of dozens or hundreds of thin strands of glass

·  Transmit data as pulses of light through tiny tubes of glass

·  Capable of carrying more signal than other wire cables and have faster data transmission

·  Costs more than twisted-pair or coaxial cable and can be difficult to install to modify

• Send signals using infrared light waves
• In  order to communicate to each other, infrared devices often be within  about 5 meter
  

• Distributes radio signals through the air over long distance such as between cities and short distances such as within an office
• Bluetooth, Wifi and wimax communications technologies use broadcast radio signals
  

• Is a form of broadcast radio that is used widely for mobile communications, specifically wireless modes and cell phones
  

• Provide a high-speed signal transmission
  
• Microwave transmission, often called fixed wireless, involves sending signals from one microwave station to another station 
• Microwave can transmit data at rates up to 4,500 times faster than a dial-up modem
  

• A satellite is a space station that receives microwave signals from an earth-based station
  
• amplifies the signals
  
• Broadcast the signal back over a wide are to any number of earth-based station