Morphy USB IO is a USB target device designed and distributed by Morphy Planning. It is not a ready-to-run product; it is supplied as a soldered printed board with no case, (you can even order unsoldered kit for lower price,) and it does nothing useful as its own. The device has 12 TTL-level generic I/O ports, and you can connect various peripherals to them so that they are put under control of a PC. This is what the device is for.
Traditionally, the parallel port (printer port) was used for this purpose with IBM-compatible PCs. However, PC operating systems are getting more complex and protective, and such non standard use of the parallel port is getting hard to do. Also, the leading companies in the industry are so enthusiastic promoting so-called "legacy free architecture," and the parallel ports may eventually disappear. Even today, parallel ports have already been removed from Some of the latest note PCs.
Morphy USB-IO provides an alternative handy way to connect various electronic circuits to PCs.
This page shows some examples about what I'm doing with Morphy USB-IO.
On May 2003, Morphy Planning was put into legal liquidation. So, you cannot buy USB-IO anymore.