Clarity of terminology — do logic gates “open their outputs,” or do they deterministically compute outputs? Evaluate the statement: “Logic gate circuits contain predictable gate functions that open their outputs.”

Introduction / Context:
Digital logic gates are deterministic Boolean operators. Their outputs are computed from inputs according to fixed truth tables. The phrase “open their outputs” confuses this function with special output structures (like open-collector or tri-state) that can electrically disconnect a pin, which is different from computing 0 or 1. The prompt checks clarity between function and electrical drive mode.

Given Data / Assumptions:

• Standard gates (AND, OR, NAND, etc.) with push-pull outputs unless otherwise specified.
• “Open their outputs” is interpreted as “leave the output floating,” which is not the general behavior.
• We focus on logical behavior, not specific I/O topologies.

Concept / Approach:
Logic gates implement predictable functions mapping inputs to outputs per a truth table. While some devices provide open-collector or tri-state options that can place the output in high-impedance (Hi-Z), that is a separate feature and not synonymous with the fundamental gate function. Therefore the wording in the statement is misleading and inaccurate in general form.

Step-by-Step Solution:

Verification / Alternative check:
Datasheets specify truth tables separately from output stage type (totem-pole, open-collector, tri-state). This separation proves that “opening” (Hi-Z) is an electrical mode, not the gate’s logical function.

Why Other Options Are Wrong:

• Correct: Misstates the nature of gate operation.
• Tri-state / open-collector only: These are special cases; the blanket statement remains wrong.
• Asynchronous systems: Clocking style does not alter gate output semantics.

Common Pitfalls:
Conflating Boolean function with I/O topology; assuming “open” means logical 1 or 0 rather than Hi-Z. Keep logic behavior (truth tables) separate from electrical drive types.

Final Answer:
Incorrect