ICS4U CHUMP Project: A 4-bit TTL Processor
Building the Cambridge-1: A 4-bit homebrew 7400 based CPU
Building a 4-Bit Computer from the Ground Up - EEWeb
Building a 4-Bit Computer: Mitigating Metastability (Part 4) - EEWeb
Nibbler 4 Bit CPU | Big Mess o' Wires
programming - What could one do with a 4 BIT computer made out of discrete logic gates? - Electrical Engineering Stack Exchange
Build 4bit Computer/Adder | How to | SdevElectronics - YouTube
Making your own 4 bit computer from transistors - YouTube
4-Bit-Microprocessor - YouTube
Subsystems - Microprocessor Trainer - Subsystems
7400 Series IC Nibbler 4-Bit CPU – PCB Version! « Adafruit Industries – Makers, hackers, artists, designers and engineers!
MP-4 Simplest 4 Bit TTL CPU : 9 Steps - Instructables
Nibbler 4 Bit CPU | Big Mess o' Wires
Building the Cambridge-1: A 4-bit homebrew 7400 based CPU
B4 Tutorials 8-10: We are building a 4-bit computer. - YouTube
4-Bit TTL Scratchbuilt Computer | TTL CPU
Building a 4-Bit Computer from the Ground Up - EEWeb
4-bit computing - Wikipedia
Learn More About The Design Of PCs Using The 4-bit Microprocessor Computer (video) - Geeky Gadgets
RL4000: 4-Bit CPU trainer — Parallax Forums
4-bit CPU
Nibbler 4 Bit CPU | Big Mess o' Wires
The Simple 4-Bit Computer | GilDev
Cambridge-1 is a 4-bit homebrew 7400-based CPU | Arduino Blog
