Question

Consider the following statements.
(A) Combinational logic circuits do not have memory, while sequential logic circuits have memory elements.
(B) Sequential logic circuits depend only on the current inputs, while combinational logic circuits depend on both current and past inputs.
(C) Flip-flops and latches are examples of combinational logic circuits.
(D) Multiplexer is an example of combinational logic circuit.

• A. (A) and (D) only
• B. (A), (B), and (C) only
• C. (A), (B), (C) and (D)
• D. (A), (C) and (D) only

Hint:

In logic circuits, **combinational circuits** depend only on current inputs, while **sequential circuits** depend on both current and past inputs due to memory elements like flip-flops.

Answer 1

The Correct Option is A

Step 1: Evaluating Statements. 
- **(A)** True: **Combinational logic circuits** do not have memory, while **sequential circuits** have memory elements (like flip-flops or latches). 

- **(B)** False: **Sequential logic circuits** depend on both current and past inputs (because they have memory elements), while **combinational logic circuits** depend only on current inputs. 

- **(C)** False: **Flip-flops and latches** are examples of **sequential** logic circuits, not combinational. 

- **(D)** True: A **multiplexer** is an example of a **combinational** logic circuit, as it selects one of several inputs based on a selector value. 
 

Step 2: Conclusion. 
Thus, the correct statements are **(A) and (D) only**, so the correct answer is **(1)**.