INFORMATION TRANSMISSION

1. 1. Wireless

1.1. ~ the transmitted distance can be anywhere between a few metres and a thousand kilometers.

1.2. ~ communication has enhanced to convey information quicker.

1.3. ~ working professionals can access internet anywhere

1.4. ~ urgent situations can be altered through wireless communication

1.5. ~ it has led to many security threats.

1.6. ~ it is very easy for hackers to grab wireless signals. it increases the risk to lose information.

2. 2. Satellite:

2.1. ~all the signal transferring is happening in space.

2.2. ~ satellite transmission requires an unobstructed line of sight

2.3. ~ satellite signals must travel in a straight line

2.4. Microwave signals from a satellite can be transmitted to any place on earth

3. 3. Cable

3.1. ~ cable used for information transmission is Fiber-Optics which is a technology that allows a light to travel along thin glass or plastic wires.

3.2. ~ digital information can be converted into light pulses that move along the length of wires.

3.3. ~ telephone calls, the internet, and cable television are examples of the kind of information that can pass through such cable.

3.4. ~ it is typically less expensive than copper wiring. They are typically used for long distance communication.

3.5. ~ optical fiber is used by many telecommunications companies to transmit telephone signals, internet communication, and cable television signals.

3.6. ~ due to much lower accentuation and interference, optical fiber has larger advantages over existing copper wire in long distance and high demand applications.