Eight digital outputs act as the parallel interface. When a byte is received over serial, the individual bits are set on the individual digital lines connected to the printer’s parallel port.

Serial ports are widely used by sensors for data acquisition, and they were standard on early computers for connecting a modem, mouse and other peripherals. Old Macs used the serial port for printers.

On the classic IBM PC, the data port serves solely for output, but the control port can serve as either input or output. The eight-pin, tiny, serial EEPROM consumes less than 1-mA current in the ...

How to Repair a Serial Port in Windows 7. Although serial port connections have been replaced by USB ports in most computers, older business equipment such as fax machines and printers may still ...

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. Click the box next ...