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.

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Faced with a CNC that took instructions over serial port, and not wanting to deal with the cabling involved in a serial to USB adapter, [vahidyou] turned to an ESP8266 to let his computer and ...

Universal Serial Bus (USB) is a modern standard for connecting peripheral devices to a computer using a single connector that replaces serial, ... High-Speed Serial Ports. how-to. May 13, 2002 4 mins.

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.

An image from H.D. Moore's presentation on serial server security vulnerabilities, showing an oil and gas infrastructure setup networked with serial port connections. (Click to enlarge.) You ...

Virtual serial ports are necessary to enable an application that was written for the serial port to run on a computer that does not have that interface. See serial port. Advertisement.

Serial Bus vs. Serial Port. Although sounding similar, a serial bus differs from a serial port. Both use serial transmission; however, the serial port connects the computer to one device, ...

I f you've been using computers for more than a couple of decades, you've probably used a serial port to attach peripherals like your mouse and modem. Until the USB standard rendered them obsolete ...