2A digital signal changes some characteristic of a carrier wave
3Digital signal is amplified
4All of the above
Answer:- 1
Explanation:-
Solution:
A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.
Exam Wise
Subject Wise
Workspace
Report
Post your Comments