Structure of sequential logic — do most sequential circuits include both memory and combinational sections? Evaluate the statement that typical sequential systems combine a memory element bank (e.g., flip-flops/registers) with surrounding combinational logic.

Introduction / Context:
Sequential logic differs from combinational logic by incorporating memory of past inputs. Real designs typically interleave storage elements and combinational functions to create controllers, counters, and pipelines. This item checks recognition of the canonical structure.

Given Data / Assumptions:

• Sequential circuits use flip-flops, latches, or RAM elements as memory.
• Combinational logic computes next-state and outputs from current state and inputs.
• Synchronous clocking is assumed for mainstream designs.

Concept / Approach:
The standard synchronous model is: next_state = f(current_state, inputs); outputs = g(current_state, inputs). Memory holds current_state; combinational logic implements functions f and g. Almost all practical sequential blocks, from simple counters to complex CPUs, follow this template.

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