Imagesource: https://www.allaboutcircuits.com/

The HN find of the week should be of interest to pretty much anyone interested in the hardware- rather than the software-part.

Free Electrical Engineering Book

If you've always felt a knowledge gap high up there regarding the hardware section, here's one of the better (if not a really fantastic) opportunities to fill it. Thanks to the team behind allaboutcircuits.com tweeting as @AllAboutCircuit.

What they have put online, starts with the basic principles of electricity, and only ends with digital computing. The chapters are tremendously tidy and perfectly sequenced. For most, there are worksheets to check, what you understand (or don't 😬).

A wonderful resource to help you get an overview of an extensive subject area fairly quickly, and definitely the tip-of-the-week™.