How do I connect my older T200B to a computer or laptop without a serial port?

In order to connect a T200B using the serial port to a device which does not have a matching serial port you will need to use a serial to USB adaptor. Comar recommends a serial to USB adaptor which uses the FTDI chipset.

The latest drivers for Windows/Mac/Linux can be found here: http://www.ftdichip.com/Drivers/VCP.htm