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As more electronic systems have been designed using digital technology, devices have become smaller and less powerful
F
A digital audio system makes a copy of the waveform
F
A digital audio system stores a code, a series if amplitude numbers, that tells the compact disc player how to re-create the original sound every time a disc is played
T
The binary number system is a positional notation system
T
Hexadecimal numbers are primarily used as a shorthand of binary
T
The signal on a CD is sampled ___________ times a second
44,100
assigning the digit 1 to a logic HIGH and digit 0 to logic LOW is called ___________
positive logic
The hexidecimal system is based on powers of
16
A momentary variation of voltage from one logic level to the opposite level and back again is called...
pulse
The rightmost bit of a binary number is the
least significant bit
Which of the following does not apply to digital signals
Continuously Variable
A __________ system is a system of writing numbers where the value of a digit depends not only on the digit, but also on its placement within a number
positional notation
After the binary system, ______ numbers are the most often used in digital applications
hexadecimal
_________ is a fraction of the total period that a digital waveform is in the HIGH state
Duty Cycle
______ is a time-varying sequence of logic HIGHs and LOWs that repeats over a specified period of time.
Periodic waveform
A special case of symmentrical periodic waveform is a:
Clock signal
_________ is a system in which low represents binary digit 1 and high represents 0
Negative logic
A truth table is a list of output levels of a circuit corresponding to all different
input combinations
For binary numbers from 0000 to 1111, the decimal equivalents are _____.
15
Two commonly used methods to convert decimal to binary
sum of powers of 2 and repeated division by 2
