What is a USB to serial adapter used for & do you need a driver for one?

Learn what a USB to Serial adapter is used for, when you might need one, and whether installing a driver is required for it ...
Computerworld

Hacking the Cable Modem: Building A Console Cable

The device shown in Figure 17-1 is an RS-232–to–TTL converter board, designed to allow a PC with a serial (RS-232) port to communicate with a device that has a console (TTL) port. External converters ...