Definition of a glitch in digital circuits: Assess the statement: “A glitch is a short, unintended pulse that can lead to an undesired result in a digital circuit due to logic hazards or timing.”

Introduction / Context:Glitches are abrupt, brief pulses appearing on digital signals when logic paths with different delays momentarily disagree. Even if the correct steady-state value is eventually reached, the transient pulse can trigger downstream elements, causing incorrect counts, spurious writes, or false interrupts. This question probes your understanding of what a glitch is and why it matters.

Given Data / Assumptions:

• Digital gates have finite propagation delays.
• Multiple reconverging paths can create hazards (static or dynamic).
• Sequential circuits may respond to brief pulses if timing permits.

Concept / Approach:When inputs transition, unequal path delays can produce a temporary output level that does not match the final logic evaluation. This momentary excursion is a glitch. Designers mitigate glitches by using synchronous sampling, hazard-free logic forms, proper gate balancing, or registering outputs before they drive sensitive destinations.

Step-by-Step Solution:

Verification / Alternative check:Waveform simulations show narrow spikes during input transitions; timing analysis identifies hazard conditions and recommends registering or re-timing.

Why Other Options Are Wrong:

Common Pitfalls:Feeding combinational outputs directly into asynchronous controls; ignoring minimum pulse width specs of receiving circuits; assuming slow edges eliminate glitches.

Final Answer:Correct