Computers often have more than one port to connect printers and other computer periphreals, which is helpful for businesses that use multiple peices of office equipment. When a printer port is ...

Imagine this: You're rushing to print an important document, but your printer throws up Error 709 – a frustrating roadblock tied to printer port issues. Don't worry ...

You can easily use a PC's printer port for serial-EEPROM programming. You can use a device-programmer circuit used to program the MicroWire serial EE-PROM 93CXX (Figure 1). The circuit is so simple ...