A fork bomb is simply a line of some characters entered into the command line of a Unix system, and when the enter key is pressed, within seconds the computer will crash... The little program we entered in to the bash shell act as a process & make multiple copies of itself, setting off a chain reaction and thus quickly exhausting the system’s resources. Most computer operating systems can be simply crashed or at least brought to a coma stagewhen users, even those without superuser privileges, launches this 'logical bomb' that eat up all memory and CPU time.