I wrote a popular post about serial ports once, and serial ports are something I think about, worry about, and dream about with some regularity. Yet I have never really devoted that much attention to the serial port’s awkward sibling, always assuming that it was a fundamentally similar design employing either 8 data pins each way or 8 bidirectional data pins. It turns out that the truth is a lot more complicated. And it all starts with printers. You see, I have written here before that parallel ... ⌘ Read more
I wrote a popular post about serial ports once, and serial ports are something I think about, worry about, and dream about with some regularity. Yet I have never really devoted that much attention to the serial port’s awkward sibling, always assuming that it was a fundamentally similar design employing either 8 data pins each way or 8 bidirectional data pins. It turns out that the truth is a lot more complicated. And it all starts with printers. You see, I have written here before that parallel ... ⌘ Read more