Computing Fundamentals Tutor Adding 03: 4-Bit Adder

This video shows the creation of a simulated 4-bit adder circuit.

It is one of a series on binary adders, digital electronic circuits that can add binary numbers, and shows how to combine full adders to make ripple adders, circuits capable of adding multi-bit binary numbers. While this example is a 4-bit adder, the principles are the same for any size of binary number.

This series in turn is part of a larger series that charts the creation of a simulated 4-Bit CPU, with clear explanations of what is happening at every step of the way. Following this Super-Series is a great way to gain a strong understanding of the hardware that underpins computers, and is a great learning experience for anyone interested in computing as a career or hobby.

Roadmap:

Understanding the basics of digital electronics is fundamental to the understanding of computer hardware, and this software allows you to explore that without the need for hardware, soldering irons and the such like.