As I mentioned in my recent columns on the topic of adding pull-up or pull-down resistors to the inputs of unused or partially used logic gates and functions (see Part 1, Part 2, and Part 3), I was ...

Here’s the most amazing 8-bit DIY computer implemented using a bunch of simple logic chips — along with a cornucopia of flashing LEDs — mounted on a cluster of breadboards. I stand in awe. As I’ve ...