Port
A port is a physical connector, usually on the back of the computer, to which Pico converters can be attached.
| USB: | Units that support USB natively do not have port numbers |
| Parallel: | LPT1, LPT2, etc. (sometimes known as a printer port) |
| Serial: | COM1, COM2, etc. |
| Parallel Port USB adapter: | USB-PP1, USB-PP2, etc. |