Before USB ports became standard on PCs, several devices connected through a serial port. They're obsolete in many ways, but they still see some use.

Also, if I understand USB serial correctly, each serial port needs two endpoints, so you’d be limited to 3 ports on the AT30UC3A0128; larger parts might have more endpoints (I didn’t check ...

Plug the USB-to-serial adapter into an open USB port on your computer. Insert your adapter's driver CD when you see a "Found New Hardware Wizard" window appear on your screen.

The classic serial null-modem cable was, among other things, used to connect two computers together for communications and file transfer. Largely eliminated in daily use by the advent of home netwo… ...

Ever wondered who invented USB and who actually controls it now? It all started with Ajay Bhatt’s Intel team and today ...

For measurement applications that require several RS-232, RS-422, or RS-485 ports, use the SeaLINK-USB+8 family of converters from Sealevel Systems to connect up to eight serial ports to a PC through ...

What's a good brand to go with? I know there are some that are queer and use special drivers - i'm looking for something that I can just plug in and it will show up to XP like any other COM port ...

USB port not recognizing your device? ... With Device Manager opened, scroll down to USB Serial Bus controllers. Expand the section. Right-click on USB Root Hub (USB 3.0).

USB serial ports are much easier as a serial port doesn't strictly need an interrupt to provide full functionality and we've been emulating them in software so much and for so long ...