When pulses must be counted and displayed in decimal, which counter type is commonly chosen? Select the best match used for decimal readouts and displays.

Introduction / Context: Many practical applications, such as frequency counters or event counters, need to display results in base-10. Counters that naturally present their state in decimal-oriented code simplify driving seven-segment displays or decimal readouts.

Given Data / Assumptions:

• The requirement is to display numeric results in base-10.
• BCD (Binary Coded Decimal) expresses each decimal digit with four binary bits.
• Display drivers and decoders commonly expect BCD inputs.

Concept / Approach: Although “decade” and “BCD” are closely related (a decade counter has ten states), BCD counters explicitly output in a decimal-digit-friendly format. This makes interfacing to BCD-to-7-segment decoders straightforward, which is why BCD counters are often selected when the output is intended for decimal displays.

Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

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