Mar 19, 2024 · Fundamentals

From Light Bulbs to CPUs: Building Logic Gates, Adders, and an ALU from Scratch

This article walks through the step‑by‑step creation of digital logic primitives—starting with encoding messages using blinking bulbs, then constructing basic gates, half‑ and full‑adders, a clock oscillator, RAM storage, and finally an arithmetic‑logic unit and simple instruction set—illustrating how complex computation emerges from simple hardware.

ALURAMadders

0 likes · 12 min read

From Light Bulbs to CPUs: Building Logic Gates, Adders, and an ALU from Scratch

Liangxu Linux

Dec 22, 2019 · Fundamentals

How Simple Logic Gates Build a CPU: From Diodes to 4‑Bit Adders

This article explains how basic semiconductor concepts and diode‑based logic gates can be combined into simple arithmetic circuits, registers, and a minimal instruction set to construct a functional 4‑bit CPU, illustrating each step with diagrams and historical context.

CPUSemiconductorsadders

0 likes · 13 min read

How Simple Logic Gates Build a CPU: From Diodes to 4‑Bit Adders