???<BR><BR>I have a propriatery RS232 device that I need to connect to a computer that has no serial ports (newer laptop). The hardware has a dongle incorporated into the cable to unlock the software ...

Serial ports were dropped before parallel ports were - my old R52 has a parallel port but not a serial port. A quick look at that list shows that the last Thinkpads that had the ports were the A31 and ...

A socket that connects to a serial interface (one bit following another over one line). Serial ports are widely used by sensors for data acquisition, and they were standard on early computers for ...