The serial port is most commonly RS232, which is a standard that dates back to the 1960s. Although RS232 is the most widely used, these adapters can also feature RS485 or RS422 serial interfaces.

In my line of work I use serial on a near daily basis. Currently, I have 3 different USB>Serial cables; an IO Gear GUC232A, a Cables to Go (Prolific PL2302 chipset) and a older Radio Shack cable ...

So he tried his hand with some really small SMD parts by building this USB to serial Arduino programmer. The chip he went with isn’t the FTDI part we’re used to.

Exar has announced a new family of USB to serial bridge devices for industrial applications. The XR21B142x family interfaces with RS-232 or RS-485 serial networks. The XR21B1420, XRB21B1422, and ...

Some of them are connected to native serial ports, and some have USB->RS232 adapters. I am communicating to them via the serial port interface and their /dev/ttyUSB* device nodes.

And if you were to go back a few more years into the past, you’d have found when you bought a mouse with a PS/2 connector fitted, it may well have come with an adapter for a 9-pin RS232 serial port.

Also known as an RS-232 port, serial ports provide very slow speeds and have been superseded by USB on desktop computers. USB-to-serial adapters are available for old peripherals.

The USB-KM232 allows a serial port on a device such as another PC or microcomputer to generate USB keyboard and mouse actions on a target PC. Single byte serial commands into the RS-232 side of the ...

Both serial and parallel ports were slow by modern standards, and by the 2000s, they had largely disappeared from home computers, which now use faster USB ports for almost everything.