COMD 5070 Quiz 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
advantages of digital techniques - CORRECT ANSWER - possibility of making
essentially perfect copies of an original &
digital systems can be extremely flexxible and allow the routine use of processing schemes that
would be impossible to perform with analogue systems
disadvantages of digital techniques - CORRECT ANSWER - speed (operate quite slowly,
and cannot keep up with the rate at which signals come in)
more expensive than traditional electronic systems, especially for simple tasks
examples of analogue signals - CORRECT ANSWER - speech sounds/musical tones,
displacements of the middle ear bones.
analogue signals - CORRECT ANSWER - continuous in time and continuous in
amplitude. (have to graph since the signal varies based on time and amplitude
digital signal - CORRECT ANSWER - exist only at discrete, equally spaced moments of
time. (value for every signal). Between the sample points the signal doesn't really exist.
signals are quantized. That they are limited to a set of discrete values. (no decimal or extended
numbers) must round
table represents a digital signal
quantized - CORRECT ANSWER - signal whose possible values are restricted as two
unequal values must differ by at least a fixed quantum. (a finite number)
Exam Questions and CORRECT Answers
advantages of digital techniques - CORRECT ANSWER - possibility of making
essentially perfect copies of an original &
digital systems can be extremely flexxible and allow the routine use of processing schemes that
would be impossible to perform with analogue systems
disadvantages of digital techniques - CORRECT ANSWER - speed (operate quite slowly,
and cannot keep up with the rate at which signals come in)
more expensive than traditional electronic systems, especially for simple tasks
examples of analogue signals - CORRECT ANSWER - speech sounds/musical tones,
displacements of the middle ear bones.
analogue signals - CORRECT ANSWER - continuous in time and continuous in
amplitude. (have to graph since the signal varies based on time and amplitude
digital signal - CORRECT ANSWER - exist only at discrete, equally spaced moments of
time. (value for every signal). Between the sample points the signal doesn't really exist.
signals are quantized. That they are limited to a set of discrete values. (no decimal or extended
numbers) must round
table represents a digital signal
quantized - CORRECT ANSWER - signal whose possible values are restricted as two
unequal values must differ by at least a fixed quantum. (a finite number)
