Counting terminology: When incrementing a binary or decimal count, the digit that changes most frequently from step to step is called the ________.

Introduction / Context:
In digital counting and number representation, different digit positions change at different rates. Knowing which digit changes every increment helps with timing, ripple effects, and understanding binary counters.

Given Data / Assumptions:

• Counting proceeds by +1 increments.
• Number representation can be binary or decimal; the concept is analogous.
• Terminology: LSB = least significant bit; MSB = most significant bit.

Concept / Approach:
The least significant position toggles with every increment. In binary, the LSB flips every count; higher bits change at powers-of-two intervals (every 2 counts for bit1, every 4 counts for bit2, etc.). Thus, the digit that changes most often is the LSB.

Step-by-Step Solution:

Verification / Alternative check:
Examine a ripple counter timing diagram; the LSB output has the highest toggle frequency, confirming the definition.

Why Other Options Are Wrong:

Common Pitfalls:
Confusing digit significance with physical pin position; assuming decimal dynamics differ fundamentally (they do not—the ones place changes every increment).

Final Answer:
LSB