 it might come with a 9-pin serial
   port, usually assigned the device name <b>COM1</b> in Windows.  These ports
   were ubiquitous in older PCs, before USB became standard, but they largely
   disappeared after that except on gaming PCs.
</p>
<p>
   The Pico has built-in hardware support for a matching serial port, known
   as a UART port.  You can configure a pair of GPIOs on the Pico as a UART port,
   and then connect these to a physical COM port on the PC to set up a terminal
   connection.  You'll al