A computer that is free of old-type ports is said to be legacy free. This term appears often in computer advertisements. The phrase basically indicates that the computer has only the newer USB ports and does not contain any of the older parallel or serial ports. Since USB ports are faster, they are preferable; however, some older printers, scanners, cameras, and other peripherals have only serial or parallel connectors. In order to connect such a peripheral to a USB port, a special converter is needed. These converters generally work well, but sometimes getting a parallel or serial device to work on a USB connection may be difficult. In certain instances, these peripherals simply refuse to work with legacy free computers. It is best to use USB enabled peripherals with legacy free computers. Some legacy free computers also have another new connection called FireWire (IEEE1394).