Today, computer networks communicate via ______ signals; originally, the US public telephone system was a(n) _________ network.
A) analog; digital
B) analog; fiber
C) digital; analog
D) digital; fiber

Question

Quizplus · Accepted Answer

Today's computer networks communicate via digital signals. The US public telephone system was originally an analog network, which means it transmitted signals by varying the amplitude or frequency of the electrical voltage. However, advancements in technology have made it possible for phone systems to also transmit digital signals.

Today, Computer Networks Communicate Via ______ Signals; Originally, the US