there are 2 types of transmissions
BOUNDED:-In this we use cables .There are 3 types of cables coaxial ,twisted pair and fiber optics these cables are used to transmit your data to the destination.The main difference between coaxial+twisted pair,optical fiber is that they (coaxial+tp)used signals and FO use light.
UNBOUNDED:-It referrs to wireless(802.11).In this we use Electromagnetic spectrum .We use Micro waves,radio waves, infrared for our communication.
Tuesday, April 14, 2009
Posted by Raghu Kumar on 9:09 AM