The original telephone network, which is referred to as the plain old telephone system (POTS), was an ________ system.
A. digital
B. analog
C. digital as well as analog
D. none of the above
Answer:A
The original telephone network, which is referred to as the plain old telephone system (POTS), was an ________ system.
A. digital B. analog C. digital as well as analog D. none of the above