For portable-sensing and data- acquisition applications, a laptop computer and its parallel port (LPT) make good bedfellows. Yet in the effort to extend battery life, many microprocesso ...

So I'm trying to detect through Visual Basic 6.0 when a voltage change occurs on one of the pins of the serial/parallel port. The whole thing is pretty ...

For our younger readers; the parallel port is an interface standard used for bi-directional communication between a computer and a variety of peripherals.

The PC serial port, sometimes called the RS-232 port, provides another easy method for connecting a PC to a DUT. Like the parallel port, the serial port is available on most PCs, and an interface ...

For CNC routers, though, you’re usually dealing with a parallel port interface connected to an old computer.