WorksheetsModule 3 - Introduction to Embedded Systems
Total questions: 30
Worksheet time: 11mins
In the context of a Data Flow Graph (DFG), what does an inward arrow represent?
Output data
Input data
Process execution
Data storage
What does the Control Data Flow Graph (CDFG) model represent?
Only data operations
Both data operations and control operations
Only control operations
Only sequential program execution
Which of the following is NOT present in a Data Flow Graph (DFG)?
Data flow nodes
Operations or processes
Decision nodes
Arrows representing the movement of data
In the context of the State Machine Model, what is an "Action"?
A system state
A transition between states
A condition for triggering events
An activity performed by the state machine
What defines a Finite State Machine (FSM)?
It has an infinite number of states
The number of states is finite
It only accepts input from external sources
It does not involve transitions between states
In a Flow Chart, which of the following symbols is typically used to represent a decision or conditional?
Rectangle
Circle
Arrow
Diamond
In the Object-Oriented Model (OOM), which concept is used to hide the internal details of an object?
Inheritance
Encapsulation
Polymorphism
Classes
Which programming language would be used to design the hardware for the Coffee Machine?
C++
Java
Verilog or VHDL
Python
Which of the following analog components is used to control the flow of current in a circuit?
Capacitor
Resistor
Transistor
Voltage Regulator
Which component is used to amplify weak signals in analog electronics?
Voltage Regulator
Resistor
Operational Amplifier (Op-Amp)
Capacitor
Which of the following components is typically used for energy storage in analog circuits?
Capacitor
Diode
Resistor
Operational Amplifier (Op-Amp)
Identify the component.
Diode
Resistor
Capacitor
Op-Amp
What is the main function of a P-N Junction diode?
Amplifies signals
Allows current to flow in both directions
Allows current to flow in one direction, used for rectification
Regulates voltage output
(a) diode allows current to flow in both directions.
In which type of application would a transistor be in either the ON or OFF state?
Amplification
Signal filtering
Switching
Voltage regulation
Which of the following components performs basic logical operations in digital circuits?
Transistor
Logic gates
Voltage regulator
Capacitor
Which of the following is NOT a type of logic gate?
AND
OR
XOR
ADD
Which of the following is the output of a NAND gate when both inputs are 1?
0
1
Undefined
Both 1 and 0
What is the output of an XNOR gate when both inputs are the same?
(a)
What is the function of a Non-Inverting Buffer?
To invert the input signal
To output the same value as the input signal
To amplify the signal while altering its logic
To disconnect the circuit
Which of the following is a key characteristic of a Tri-State Buffer?
It can only output High (1) or Low (0)
It has three states: High (1), Low (0), and High Impedance (Z)
It alters the logic of the input signal
It connects multiple devices without any interference
How many output combinations can a 3-to-8 decoder produce?
2
4
6
8
What would be the output of a 4-to-2 encoder with input 0100?
01
10
00
11
What is the number of inputs and outputs in a 4-to-1 multiplexer?
1 input, 4 outputs
4 inputs, 1 output
2 inputs, 1 output
4 inputs, 2 outputs
How many selection lines are required for an 8-to-1 multiplexer?
2
3
4
5
Which of the following is an example of a combinational circuit?
Flip-flops
Counters
Multiplexers
Registers
Which of the following is NOT a type of combinational circuit?
Adder
Decoder
Comparator
Flip-flop
What happens when both inputs S and R are 1 in an S-R flip-flop?
The output remains at logic high
The output remains at logic low
The output becomes undefined or indeterminate
The output changes based on the previous state
What happens when both J = K = 0 in a J-K flip-flop?
The output toggles its state
The output remains in the previous state
The output becomes undefined
The output is set to logic high
What is the maximum number of logic gates contained in a Medium-Scale Integration (MSI) IC?
Up to 10 gates
Up to 100 gates
More than 1,000 gates
Millions of gates
