Can I use game port, serial, parallel, or PS/2 devices on USB?
A3: These devices use different electrical signals than the ones used for USB, so you can’t plug them into USB directly. However, a variety of manufacturers make USB devices that will convert game port, serial, parallel, or PS/2 devices into USB signals. With these, you can actually attach many more non-USB devices to your PC than you could without USB. Note that some devices support multiple connections to the PC, and therefore come with special adapters that let them connect to USB or another port. These adapters don’t perform any signal translation, so nothing will happen if you take one of these adapters and put it on another device that doesn’t support USB.
