Definition
In digital electronics, the output produced by a logic circuit (or logic gate) based on the state of its inputs. The decision is binary — the output is either high or low, true or false, 1 or 0 — determined by the rules of the gate (AND, OR, NOT, NAND, etc.) acting on the input signals.
Plain English
It's the yes/no answer a digital circuit gives, based on the on/off signals coming into it. The circuit follows a fixed rule to decide what its output should be.
Context Anchor
Seen in descriptions of aircraft electrical systems, warning systems, autopilots, and other equipment that responds automatically to changing conditions.
Derivation
‘Logic’ comes from the Greek logikē, meaning reasoning. In electronics, ‘logic’ refers to circuits that follow strict yes/no reasoning rules, so a ‘logic decision’ is simply the result of that rule-based reasoning.
Why Pilots Care
Modern avionics rely on stacks of logic decisions to do their job — for example, an autopilot deciding whether to engage, or a warning system deciding whether to trigger an alert. Understanding that these are rule-based binary decisions (not judgment calls) helps pilots interpret system behaviour correctly.
Grounding Statement
When the required conditions are present, the system follows its built-in rule and changes its output.
Intuition Check
A logic decision is not a human opinion or judgment. In this context, it means an automatic choice made by a circuit or computer when its set conditions are met.
Example Sentence 1
The warning system uses a logic decision to determine whether to illuminate the caution light when both the oil pressure and temperature inputs cross their limits.
Example Sentence 2
Maintenance crews test the logic decisions in the fire warning system to confirm correct responses to sensor inputs.