Question

Difference between analog communication and digital communication

Answer 1

Answer:

digital communication b/w the computing devices through digital

type of network

and analong b/w modem through analong signal

Answer 2

Answer:

Difference between analog communication and digital communication

Explanation:

Analog Communication:

1) The transmitted signal is analog.

2) FDM is used for multiplexing.

3) Coding is not possible.

4) The requirement of bandwidth is low.

5) Not suitable for the transmission of secret information.

6) Analog modulation systems are AM, FM, PM, PAM, AWM, etc.

7) Noise immunity is poor for AM.

8) Amplitude, frequency or phase variations in the transmitted signal represent the information or message.

9) Not possible to separate signals or noise.

Digital Communication:

1) The transmitted signal is digital (that is the train of digital pulse).

2) TDM is used for multiplexing.

3) The coding technique can be used.

4) Due to the higher bit rate, the higher channel bandwidth is required.

5) Due to the coding technique suitable for military applications.

6) The digital modulation system is PCM, ADM, DM, DPCM, etc.

7) Noise immunity is excellent.

8) Amplitude, width or position of the transmitted pulse is constant. The message is transmitted in the form of code words.