It is a great shame that back in the days when a typical home computer had easy low-level hardware access that is absent from today’s machines, the cost of taking advantage of it was so high.

Many designers require that their PCs act as complete control systems without any internal hardware. For this function, users need at least one channel of analog data acquisition to monitor the ...

There was a time when all PCs had at least one serial and one parallel port. Today, you won't find either of these ports on a typical desktop or laptop computer, but just because consumer-facing ...

Anyone know? I wanted to get something semi-rugged for a friends CNC setup, or at least something that's easy to get a skin for the keyboard. Thinkpad stuff is ...

This circuit uses the parallel port on the PC to interface to a MAX147 12bit, 8 channel A/D converter. By using the National LM4040AIM-4.1 reference, an accuracy of 0.1% is obtained. Each of the input ...

PLIP (Parallel Line Internet Protocol) is simply a protocol to link two computers point to point through a PC parallel port, through which it exchanges IP datagrams. It is not a standard protocol; you ...

You don’t need fancy ICs and DACs to build a sound card for a PC. As [serdef]’s build over on hackaday.io shows, all you really need is a bunch of resistors. [serdef] built a clone of a sound card ...

The oscilloscope utilizes the SPP or EPP parallel port LPT1 for reading the data from ADC0820 (TLC0820). The program will automatically switch the LPT1 in byte mode or normal mode if the LPT is an ECP ...

Do you have an old PC lying around the house which absolutely no one wants? Then you can convert it into a dedicated controller. Communicate with the real world via the parallel printer port on your ...

What the Bloody Hell is this?<P>I know of the Cyber Groove USB pad, and PumpItUp! has it's own PS/2 pad...<P>But this is just odd, especially since it looks <I>exactly</I> like most 3rd party PSX DDR ...