Logic puzzles come in various forms and have a near-infinite number of themes. But at their core, these reasoning puzzles ...

This simple logic probe has both LEDs on with no signal at the input but due to the nor gates connected to the probe, indicates correctly when a high or low signal is present. It also works correctly ...

This is very simple and useful project which gives an idea about how to build the simple logic gates i.e. AND, OR & NOT gates using one of the universal gates – NAND Gate. This is very simple and ...

It’s time to do a series on logic including things such as programmable logic, state machines, and the lesser known demons such as switching hazards. It is best to start at the beginning — but even ...

One of my favorite silly poems is “The Deacon’s Masterpiece,” by Oliver Wendell Holmes. It tells of a wonderful one-horse carriage, built in “such a logical way, it ran one hundred years to the day, ...

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 ...