Digital Communication

Topics: Facebook, Social network service, Digital Pages: 8 (2510 words) Published: February 6, 2013
Advantages of digital communication:

1. It is fast and easier.
2. No paper is wasted.
3. The messages can be stored in the device for longer times, without being damaged, unlike paper files that easily get damages or attacked by insects. 4. Digital communication can be done over large distances through internet and other things. 5. It is comparatively cheaper and the work which requires a lot of people can be done simply by one person as folders and other such facilities can be maintained. 6. It removes semantic barriers because the written data can be easily chaned to different languages using software. 7. It provides facilities like video conferencing which save a lot of time, money and effort. 1.Circutary becomes simpler than AC.

2.Highly resistive to noise as we are dealing with binary digits. 3.Highly secure.
4.Can travel long distances and can store data for long time. 5.AS we have regenerative repeaters & reconstruction filters in the receiver section we can extract original signal transmitted 6. Error correcting and detecting is easy.

7. A comman format is used for different kind of message signal such as speech signal and video signal. 8. Flexibility in configuring digital communication. digital hardware implimentation is flexible and permit the use of LSI. microprocessors anmd digital switches.

1. It is unreliable as the messages cannot be recognised by signatures. Though software can be developed for this, yet the software can be easily hacked. 2. Sometimes, the quickness of digital communication is harmful as messages can be sent with the click of a mouse. The person does not think and sends the message at an impulse. 3. Digital Communication has completely ignored the human touch. A personal touch cannot be established because all the computers will have the same font! 4. The establishment of Digital Communication causes degradation of the environment in some cases. "Electronic waste" is an example. The vibes given out by the telephone and cell phone towers are so strong that they can kill small birds. In fact the common sparrow has vanished due to so many towers coming up as the vibrations hit them on the head. 5. Digital Communication has made the whole word to be an "office." The people carry their work to places where they are supposed to relax. The whole world has been made into an office. Even in the office, digital communication causes problems because personal messages can come on your cell phone, internet, etc. 6. Many people misuse the efficiency of Digital Communication. The sending of hoax messages, the usage by people to harm the society, etc cause harm to the society on the whole. What are the Advantages and Disadvantages of Digital Communication Definition of Digital – A method of storing, processing and transmitting information through the use of distinct electronic or optical pulses that represent the binary digits 0 and 1. Advantages of Digital -

Less expensive
More reliable
Easy to manipulate
Compatibility with other digital systems
Only digitised information can be transported through a noisy channel without degradation Integrated networks
Disadvantages of Digital -
Sampling Error
Digital communications require greater bandwidth than analogue to transmit the same information. The detection of digital signals requires the communications system to be synchronised, whereas generally speaking this is not the case with analogue systems. 1.The first advantage of digital communication against anlog is it’s noise immunity.In any transmission path some unwanted voltage or noise is always present which cannot be eliminated fully.when signal is transmitted this noise gets added to the original signal causing the distortion of the signal.However in a digital communication at the receiving end this additive noise can be eliminated to great extent easily resulting in better recovery of actual signal.Incase of analog communication it’s difficult...
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