The rise time is the time it takes a pulse to go from ________
the base line to 90% of the pulse amplitude
the base line to the maximum HIGH voltage
10% of the pulse amplitude to the maximum HIGH voltage
10% of the pulse amplitude to 90% of the pulse amplitude
A type of digital circuit technology that uses bipolar junction transistors is ________
What is the typical invalid voltage for a binary signal
The set of instructions for a computer is called a(n) ________
The control and arithmetic/logic units are often considered as one unit called the ________
Central Processing Unit
inputs and outputs
A demultiplexer has ________
one input and one output
several inputs and one output
several inputs and several outputs
one data input and a number of selection inputs, and they have several outputs
In positive logic, ________
only HIGHs are present
only LOWs are present
a LOW = 1, a HIGH = 0
a HIGH = 1, a LOW = 0
A full subtracter circuit requires ________
Three inputs and two outputs
two inputs and three outputs
Two inputs and two outputs
three inputs and one output
The systems shown in the given figure transfer data ________
both serially and sequentially
The range of voltages between VL(max) and VH(min) are ________
between 2 V and 5 V
A microcontroller would not be used in a(n) ________
automobile ignition system
A DAC changes ________
None of the above
digital data into an analog signal
an analog signal into digital data
digital data into an amplified signal
Digital representations of numerical values of quantities may BEST be described as having characteristics
that vary in discrete steps in proportion to the values they represent.
that vary constantly over a continuous range of values.
that vary in constant and direct proportion to the values they represent.
that are difficult to interpret because they are continuously changing.
A pulse has a period of 15 ms. Its frequency is ________
In a certain digital waveform, the period is four times the pulsewidth.
The duty cycle is ________
The CPU contains all the circuitry for ________
fetching and interpreting instructions
keeping track of time
Which of the following statements does NOT describe an advantage of digital technology
Information storage is easy.
The values may vary over a continuous range.
The circuits are less affected by noise.
The operation can be programmed.
A classification of ICs with complexities of 100 to 10,000 equivalent gates per chip is known as ________
What kind of logic device or circuit is used to store information
The holes through a PC board are ________
larger with SMT than with through-hole mounting
the same size as with through-hole mounting
smaller with SMT than with through-hole mounting
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Practice mcqs on Digital Concepts
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Digital Computer Electronics
Digital Arithmetic Operations and Circuits
Digital System Projects Using HDL
Digital Signal Processing
Analog and Digital Converters
Analog to Digital
MongoDB CRUD Concepts and Operation
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