After reading the latest hackit post, [Ben] sent in this older, but simple logic ... The circuit uses a HC245 octal bus transceiver to feed the 8 data lines on the parallel port.

Because, unlike a simple string of lights in a series circuit, these are all arranged in a parallel circuit. And you can think of a parallel circuit as having several different routes that all run ...

[Fernando] wrote in to share his take on building a logic analyzer. He’s using the parallel port to capture data and feed it to the display software of your choice. The method depends on a ...