[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 ...

Then he realized, why not make a simple printer port add-on that looks like a printer, but sends the data over USB as a serial stream? On the hardware side, the custom PCB (KiCAD project ...

In the past, the parallel port was widely used for printers and occasionally for connecting other devices externally, but was superseded by USB. Although some business printers may still offer ...

In what must be one of the more unusual PCIe cards we’ve seen recently, Japanese company Kuroutoshikou has introduced a PCI ...

Because there was only one serial and one parallel port on the computer, the key acted as a pass-through so that other keys and peripheral devices could connect. In fact, the nickname "dongle" was ...