relay-logic
XNOR Gate: The Equality Detector That Powers Error Detection
In the previous post, we built XOR from relays — the gate that asks are these two inputs different? It lit a lamp precisely when its inputs disagreed. That circuit...
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xnor-gate
A collection of 3 posts
xnor-gate
The XNOR Gate: Champion of Equality in Digital Logic
TL;DR: The XNOR gate (Exclusive-NOR) outputs 1 only when its inputs are equal — both 0 or both 1. Boolean expression . Multi-input XNOR chains act as even-parity detectors, and...
xor-gate
XOR vs. XNOR: The Critical Difference in Error Detection
TL;DR: XOR outputs 1 when inputs differ; XNOR outputs 1 when they match. Multi-input XOR chains detect odd parity; multi-input XNOR chains detect even parity. The choice between them depends...
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