DigiComm1

The communication that occurs in our day-to-day life is in the form of signals.

those are disadvantages of digital communication except?

• Digital transmission requires a large system bandwidth to communicate the same information in a digital format as compared to analog format.

• Digital detection requires compulsory system synchronization whereas the analog signals generally have no such requirement.

• Involves high power consumption due to multiple stages.

• Signal processing functions like encryption, compression can be employed to maintain the privacy, secrecy and security of the information.

those are advantages of digital communication except?

• Data compression and configuration is possible.

• Error detecting and error correcting codes improve the system performance by reducing the probability of error.

• Combining digital signals using time division multiplexing (TDM) is simpler than combining analog signals using frequency division multiplexing (FDM). The different types of signals such as data, telephone, TV can be treated as identical signals in transmission and switching in a digital communication system.

• Involves high power consumption due to multiple stages.

this signal allow the communication to be more clear and accurate without any losses.

Characterized by data whose values vary over a continuous time range. For example, a speech waveform has amplitudes that vary over a continuous range. Voice, picture is also an analog message.

Constructed with a finite number of symbols or discrete time sequence of symbols.

those are advantages of digital communication except?

• We can avoid signal jamming using spread spectrum technique.

• The hardware implementation is more flexible than analog hardware because of the use of microprocessors, small scale integration circuits, among others.

• The effect of distortion, noise and interference is less in a digital communication system. This is because the disturbance must be large enough to change the pulse from one state to the other.

• Complex circuitry

The sharing or transfer of collection of facts, figures, etc. between devices capable of such exchanges using some of the other communication mediums. Whenever we communicate we simply share facts, ideas, etc. in mutually agreed language and speed with the maximum accuracy possible.

The transfer and reception of data in the form of a digital bitstream or a digitized analog signal over a point-to-point or point-to-multipoint communication channel.

The transmission mode is digital.