Definition of cascading in digital design: The statement claims “To cascade is to connect in parallel.” Assess whether cascading refers to parallel wiring or to connecting stages in series so that the output of one feeds the input of the next.

Introduction / Context:
“Cascading” is a common term in logic design, counters, decoders, multiplexers, and amplifiers. Understanding its meaning determines how you expand bit-width, range, or functionality. This question challenges the misconception that cascading is the same as connecting in parallel.

Given Data / Assumptions:

• Counters, decoders, priority encoders, and multiplexers are frequently cascaded.
• Parallel connection means multiple devices share the same input or bus lines simultaneously.
• Series (cascade) connection means the output of one stage drives the input or control of the next stage.

Concept / Approach:
To cascade is to chain stages so that behavior accumulates across devices. For counters, the ripple or synchronous carry-out of one device connects to the enable/carry-in of the next to extend modulus. For decoders or multiplexers, cascade control pins are used similarly to increase address range or number of channels.

Step-by-Step Solution:

Verification / Alternative check:
Manufacturer datasheets show “cascading” diagrams labeled with carry/borrow links between packages to scale capacity—clearly a series relationship.

Why Other Options Are Wrong:

Common Pitfalls:
Confusing bus width expansion (parallel) with range expansion (cascade), and miswiring carry/enable pins leading to nonfunctional designs.

Final Answer:
Incorrect