1. Cord connecting PC Cards or other hardware device such as a USB thumb drive to external connections such as networks and phone lines. In the picture to the right, is an example of a PC Card network card dongle, a cable that connects to the end of the network card and allows for a standard RJ-45 network cable to be connected to the other end.
2. A dongle is a device allows the computer to be locked using either hardware or software to prevent unauthorized use.