Author Question: Polled I/O operation is periodic, inefficient, and generally allows no priority assignments. ... (Read 35 times)

RRMR · **on:** Jul 28, 2018

Polled I/O operation is periodic, inefficient, and generally allows no priority assignments.

Indicate whether the statement is true or false

Question 2

What statement best describes the action of a zener diode?

A) Zener diodes regulate voltage levels below their minimum forward bias
B) Zener diodes are used mostly in tuning circuits
C) Zener diodes regulate voltage upon exceeding reverse breakdown voltage
D) When the diode is biased into saturation, it tends to regulate voltage because of it's bulk resistance