I have a PC-based DSO that connects via parallel port that I'd like to get working via USB (preferable) or at least ExpressCard. I picked up a USB-parallel adapter from MicroCenter thinking it would ...

Don't use COM ports, just get an extra LPT port for the system that the printers are connected to. Connect them both up at the same time, create a share for each (say \\printserver\dotmatrix and ...

After connecting a device with a serial port with the computer via the Prolific PL2303 cable, some users have received the following error message: Please install the ...

With the continuing manufacture of new computers, there is a clear and obvious trend of the parallel port becoming less and less common. For our younger readers; the parallel port is an interface ...

First introduced in 1970, parallel ports were originally designed to connect business computers to printers. With their inclusion on the IBM PC in the early 1980s, they became an industry standard.

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 microprocessors and entire ...

The circuit in Figure 1 represents a simple and cost-effective way to obtain eight-channel analog-signal acquisition through a PC's LPT port. IC 1, a 12-bit, serial-output MAX187 ADC, operates from a ...