1. Compared to analog systems, digital systems
a. are less prone to noise
b. can represent an infinite number of values
c. can handle much higher power
d. all of the above
2. The number of values that can be assigned to a bit are
a. one
b. two
c. three
d. ten
3. The time measurement between the 50% point on the leading edge of a pulse to the 50% point on the trailing edge of the pulse is called the
a. rise time
b. fall time
c. period
d. pulse width
4. The time measurement between the 90% point on the trailing edge of a pulse to the 10% point on the trailing edge of the pulse is called the
a. rise time
b. fall time
c. period
d. pulse width
5. The reciprocal of the frequency of a clock signal is the
a. rise time
b. fall time
c. period
d. pulse width
6. If the period of a clock signal is 500 ps, the frequency is
a. 20 MHz
b. 200 MHz
c. 2 GHz
d. 20 GHz
7. AND, OR, and NOT gates can be used to form
a. storage devices
b. comparators
c. data selectors
d. all of the above
8. A shift register is an example of a
a. storage device
b. comparator
c. data selector
d. counter
9. A device that is used to switch one of several input lines to a single output line is called a
a. comparator
b. decoder
c. counter
d. multiplexer
10. For most digital work, an oscilloscope should be coupled to the signal using
a. ac coupling
b. dc coupling
c. GND coupling
d. none of the above