While cable TV is readily available in many locations, the introduction of cable modems will be slowed by the lack of standards in the industry. Price and reliability issues will impact the rate at which it is accepted. As with most newly introduced technologies, it is expected to be quite expensive. In addition, some important characteristics of each of the media are provided. Data is transmitted by applying a voltage drop across the two wires that make up a twisted pair.
Most telephone lines are twisted-pair cables.
Data is transmitted by applying a voltage drop across the conducting wires that are separated by the insulation. Data is transmitted in the form of light pulses that travel through the thread. A major advantage of microwave systems is that no direct physical cabling is required. Transmission Rate - is a measure of how much data can be transmitted over a particular communications channel during a specified time period. While there is a relationship between baud rate and bps, they are not the same.