relay-logic
NOR Gate from Relays: The Universal Gate That Flew to the Moon
In the previous post in this series, we built the NAND gate — NOT-AND — and discovered something remarkable: you don't need a full toolkit of different gates to build...
Tag
nor-gate
A collection of 3 posts
nor-gate
The NOR Gate: How It Built Apollo and Powers Modern Logic
TL;DR: The NOR gate outputs 1 only when all inputs are 0 (). Like NAND it is functionally complete — every Boolean function can be built from NOR alone. The...
sr-latch
The SR Latch: The Simplest Digital Memory Element
TL;DR: The SR (Set-Reset) latch is a bistable circuit built from two cross-coupled NOR gates (active-high) or two cross-coupled NAND gates (active-low). It supports Set, Reset, and Hold operations but...
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