4-bit Computer

The 4-bit computer built from scratch during my grade 12 year at Royal St Georges College was one of my favorite projects to date. Tasked with building the computer using IC chips for each typical computer component, the project was split into six sections: code, clock, ALU, EEPROM, program counter, and processor. Over the course of six weeks, the theory of each section was covered in class and it was up to us to take that knowledge and apply it to create working breadboard circuits.

The code was split into machine-level and assembly-level to give us a better understanding of how to read, write, and store values in the final build. Once the five circuits were built and a test code was written, each person then spent a week assembling and troubleshooting their final build. Here's a link to the project video which breaks down the final circuit into each section and demonstrates the capabilities of the computer using a basic arithmetic function: https://www.youtube.com/watch?v=n8rmM51oanM&feature=youtu.be