A place to learn about coding, making things, and stuff that strikes my fancy.
So this one is a little different; in this video I show the steps to go from the design of an arithmetic logic unit to actually demonstrating a working 8-bit ALU, made entirely out of 2N3904 transistors. The show notes include links to circuit diagrams and files in case you may want to build your... Continue Reading →
I originally planned to try to get this video out by the end of October. But I just returned from a two week trip to Spain and the south of France--and before I release a video which starts to tie together the registers developed in the third video with the arithmetic logic in the second... Continue Reading →
When we used NPN transistors to build our logic gates, it implies they can be used for building bigger things. In this video I've built a full 1 bit adder from our second Introduction video, entirely from discrete transistors. Build 8 of these--and you have an 8-bit adder. The show notes include the complete circuit... Continue Reading →
Okay, I confess I've left the gear cutting stuff on the back burner while I recover from a bug I picked up while in Mexico. During my spare time I've been working towards a series of videos which I hope to post on this site that discuss various topics in computer science. The goal of... Continue Reading →
I love computers. I've always been fascinated by computers, by the things you can do with computers, and by making things in general: hardware, software, networks, servers, user interfaces. I also have a love of mechanical things: watches, clocks, orreries, mechanical adding machines: all the things we use and have used in the past to... Continue Reading →
It's been my desire for a while now to somehow give back to the community, to teach people how to write code and how to create things, and how to take joy in designing new things and bringing them into existence. And so it begins. The intent of this blog and web site is for... Continue Reading →
The Hacking Den 