,Exam
Name___________________________________
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
1) The values of an analog signal flow smoothly from one to the next.
1) _______
2) A sinusoidal waveform is an analog signal.
2) _______
3) Digital data can be processed and transmitted more efficiently and reliably than
analog
information.
3) _______
4) The field that comprises both mechanical and electronic components is known as
electro-mechanics.
4) _______
5) The decimal number system uses nine different symbols.
5) _______
6) The binary number system uses just two symbols.
6) _______
7) A waveform that repeats itself at fixed intervals is called a periodic waveform.
7) _______
8) Digital systems respond to voltage levels that change abruptly between two
levels (high and
low).
8) _______
9) The amplitude of a digital waveform is the difference in voltage between the LOW
and HIGH
levels.
9) _______
10) The clock signal synchronizes the other waveforms in a circuit.
10) ______
11) Clock signals carry pieces of information such as letters and numbers.
11) ______
12) Serial data is sent along a single conductor, one bit at a time.
12) ______
13) Parallel data is sent along a single conductor, one bit at a time.
,13) ______
14) When the inputs to a 2-input AND gate are both HIGH, the output is HIGH.
14) ______
15) When either input to a 2-input AND gate is LOW, the output is LOW.
15) ______
16) When either input to a 2-input OR gate is HIGH, the output is HIGH.
16) ______
17) When both inputs to a 2-input OR gate are both LOW, the output is LOW.
17) ______
18) When the input to a logic inverter is HIGH, the output is LOW.
18) ______
19) Encoders and decoders perform opposite conversions.
19) ______
20) A multiplexer converts parallel data to serial data.
20) ______
21) A demultiplexer is sometimes called a mux.
21) ______
22) A flip-flop is a 1-bit storage device.
22) ______
23) The DIP package style has two parallel rows of through-hole pins.
23) ______
, 24) The PLCC package has J-type leads on all four edges.
24) ______
25) The flat-pack (FP) IC package style is a surface-mount device.
25) ______
26) The FPGA is a fixed-function device.
26) ______
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
27) A circuit that converts an analog waveform to a digital signal is commonly
called a(n) ________.
27) ______
A) DAC
B) PLD
C) ADC
D) CAD
28) A circuit that converts an digital signal to an analog waveform is commonly
called a(n)
________.
A) DAC
B) CAD
C) ADC
D) PLD
28) ______
29) Of the circuits listed, the one that is most likely to be found in a CD player
is a(n) ________.
A) SPLD
B) digital-to-analog converter
C) programmable logic device
D) analog-to-digital converter
29) ______
30) On a negative-going pulse, ________.
A) HIGH = 0 and LOW = -1
C) HIGH = 1 and LOW = 0
30) ______
B) LOW = -1 and HIGH = 1
D) HIGH = 0 and LOW = 1
31) On a digital waveform, the transition time from a LOW level to a HIGH level is
called ________.
A) fall time
B) period
C) pulse width
D) rise time
31) ______
Figure 1-1
32) Which edge in Figure 1-1 is the leading edge?
Name___________________________________
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
1) The values of an analog signal flow smoothly from one to the next.
1) _______
2) A sinusoidal waveform is an analog signal.
2) _______
3) Digital data can be processed and transmitted more efficiently and reliably than
analog
information.
3) _______
4) The field that comprises both mechanical and electronic components is known as
electro-mechanics.
4) _______
5) The decimal number system uses nine different symbols.
5) _______
6) The binary number system uses just two symbols.
6) _______
7) A waveform that repeats itself at fixed intervals is called a periodic waveform.
7) _______
8) Digital systems respond to voltage levels that change abruptly between two
levels (high and
low).
8) _______
9) The amplitude of a digital waveform is the difference in voltage between the LOW
and HIGH
levels.
9) _______
10) The clock signal synchronizes the other waveforms in a circuit.
10) ______
11) Clock signals carry pieces of information such as letters and numbers.
11) ______
12) Serial data is sent along a single conductor, one bit at a time.
12) ______
13) Parallel data is sent along a single conductor, one bit at a time.
,13) ______
14) When the inputs to a 2-input AND gate are both HIGH, the output is HIGH.
14) ______
15) When either input to a 2-input AND gate is LOW, the output is LOW.
15) ______
16) When either input to a 2-input OR gate is HIGH, the output is HIGH.
16) ______
17) When both inputs to a 2-input OR gate are both LOW, the output is LOW.
17) ______
18) When the input to a logic inverter is HIGH, the output is LOW.
18) ______
19) Encoders and decoders perform opposite conversions.
19) ______
20) A multiplexer converts parallel data to serial data.
20) ______
21) A demultiplexer is sometimes called a mux.
21) ______
22) A flip-flop is a 1-bit storage device.
22) ______
23) The DIP package style has two parallel rows of through-hole pins.
23) ______
, 24) The PLCC package has J-type leads on all four edges.
24) ______
25) The flat-pack (FP) IC package style is a surface-mount device.
25) ______
26) The FPGA is a fixed-function device.
26) ______
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
27) A circuit that converts an analog waveform to a digital signal is commonly
called a(n) ________.
27) ______
A) DAC
B) PLD
C) ADC
D) CAD
28) A circuit that converts an digital signal to an analog waveform is commonly
called a(n)
________.
A) DAC
B) CAD
C) ADC
D) PLD
28) ______
29) Of the circuits listed, the one that is most likely to be found in a CD player
is a(n) ________.
A) SPLD
B) digital-to-analog converter
C) programmable logic device
D) analog-to-digital converter
29) ______
30) On a negative-going pulse, ________.
A) HIGH = 0 and LOW = -1
C) HIGH = 1 and LOW = 0
30) ______
B) LOW = -1 and HIGH = 1
D) HIGH = 0 and LOW = 1
31) On a digital waveform, the transition time from a LOW level to a HIGH level is
called ________.
A) fall time
B) period
C) pulse width
D) rise time
31) ______
Figure 1-1
32) Which edge in Figure 1-1 is the leading edge?
