Pequeno dispositivo conectado a um computador para restringir o acesso a programas ou à cópia de software protegido.
Meaning
A security or {copy protection} device for commercial microcomputer programs that must be connected to an I/O port of the computer while the program is run.Programs that use a dongle query the port at start-up and at programmed intervals thereafter, and terminate if it does not respond with the expected validation code.