If you look back now at the early evolution of PCs and Microsoft Windows, you’d probably wonder how anybody was able to get any work done with them at all. For example, we’ve had USB devices now for over 20 years, each using the Plug and Play technology that identifies the hardware to the operating system. This technology was later adopted more widely, helping your PC to automatically identify other types of devices and download and install the correct drivers from Windows Update.
Before this technology came about, however, things were very different. Serial ...
