Question 13

Computer Awareness Boolean algebra Medium

Consider the following statements $$ \begin{aligned} & (A).~ \text{Combinational logic circuits do not have memory,} \\ & \ \ \ \text{while sequential logic circuits have memory elements} \\[6pt] & (B).~ \text{Sequential logic circuits depend only on the current inputs} \\ & \ \ \ \text{while combinational logic circuits depend on both current} \\ & \ \ \ \text{and past inputs} \\[6pt] & (C).~ \text{Flip-flops and latches are examples} \\ & \ \ \ \text{of combinational logic circuits} \\[6pt] & (D).~ \text{Multiplexer is an example} \\ & \ \ \ \text{of combinational logic circuit} \end{aligned} $$ Choose the correct statement/statements from the options given below:

(A) (A) and (D) only
(B) (A), (B) and (D) only
(C) (A), (B), (C) and (D)
(D) (B), (C) and (D) only
✓ Correct Answer: Option A Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

Explanation:

We analyze each statement one by one:

  • (A) Combinational logic circuits do not have memory, while sequential logic circuits do have memory elements. ✅ Correct.
  • (B) Sequential circuits depend only on current inputs, while combinational circuits depend on both current and past inputs. ❌ Incorrect, because it is the other way around: - Combinational circuits → depend only on current inputs. - Sequential circuits → depend on both current inputs and past states (memory).
  • (C) Flip-flops and latches are examples of combinational circuits. ❌ Incorrect, because flip-flops and latches are sequential circuits (they store state).
  • (D) Multiplexer (MUX) is an example of a combinational circuit. ✅ Correct.

Therefore, the correct statements are: (A) and (D).

Final Answer: Option (A)

Practice Similar Boolean algebra Questions

Reinforce your conceptual grasp with related questions from CUET-MCA 2025:

Q16 What should be the minimum hamming distance \( d min \) to guarantee...
Solve →
Q21 The following circuit generates the same output as?
Solve →
Q29 What should be the output of the following boolean expression after...
Solve →
Q31 Minimum number of 2:1 Multiplexers required to design a 16:1 Multiplexer...
Solve →
Q38 Match List-I with List-II. |c|l| List-I (JK Flip Flop inputs) & List-II...
Solve →
Full-Length Test Series

Prepare for CUET-MCA Under Real Exam Conditions

Take timed full-length mock tests with authentic question distributions, negative marking (+12/-3 in Math), and instant All India Rank calculation.

Start Free Mock Test Series →