Exploring Digital Electronics Concepts

What is the primary function of a flip-flop in digital circuits?

• To perform arithmetic operations on binary numbers.

• To store binary data (1 or 0) in digital circuits.

• To convert analog signals to digital signals.

• To amplify electrical signals in circuits.

What is a truth table and how is it used in digital electronics?

• A truth table is used to represent the output of a digital circuit for all possible input combinations.

• A truth table is used to measure voltage levels in a circuit.

• A truth table shows the physical layout of a circuit.

• A truth table is a graphical representation of circuit components.

What are the main types of logic gates and their functions?

• The main types of logic gates are AND (outputs true if both inputs are true), OR (outputs true if at least one input is true), NOT (inverts the input), NAND (outputs false only if both inputs are true), NOR (outputs true only if both inputs are false), XOR (outputs true if inputs are different), and XNOR (outputs true if inputs are the same).

• AND (outputs true if at least one input is true)

• OR (outputs false if both inputs are true)

• NOT (outputs true if the input is true)

How does a multiplexer differ from a demultiplexer?

• A multiplexer combines multiple inputs into one output, while a demultiplexer distributes one input to multiple outputs.

• A multiplexer sends one input to multiple outputs, while a demultiplexer combines multiple inputs into one output.

• A multiplexer and a demultiplexer perform the same function in data transmission.

• A multiplexer is used for error correction, while a demultiplexer is used for data encryption.

Describe the operation of a binary adder circuit.

• A binary adder circuit adds two binary numbers using logic gates to produce a sum and carry output.

• A binary adder circuit converts binary numbers to decimal format.

• A binary adder circuit only outputs the carry without a sum.

• A binary adder circuit multiplies two binary numbers to produce a product.

What role do registers play in digital systems?

• Registers store data permanently for long-term use.

• Registers are used primarily for network communication.

• Registers are responsible for managing power supply in digital systems.

• Registers play a crucial role in digital systems by providing fast access to data and instructions for the CPU.

2's complement of binary number 0101 is

• 1011

• 1111

• 1101

• 1110

Asynchronous sequential logic circuit does not depend on

• inputs

• inputs and outputs

• clock

• outputs

The following map shown in Fig illustrates

• Static-1-hazard

• Static-0-hazard

• Dynamic hazard

• Essential hazard

Which of the following(s) is (are) an application of Digital electronics

• Digital stopwatch

• Smartcard

• PSTN Telephone line

• Books