Many laser printers last for years, so businesses often keep older laser printers around even after upgrading other hardware. Many older laser printers use a parallel port interface rather than the ...

USB hubs enable you to attach multiple devices, such as printers, hard drives and card readers, to a single computer. However, the USB hub only makes the devices available to one computer at a time.

The Universal Serial Bus (USB) was originally created to replace legacy parallel and serial ports on PCs, for example, mouse and keyboard connections, printer parallel cables, outboard modem serial ...