What is a 'nano-factory'?

Researchers in Japan have invented a tiny brain which can act as a remote control for swarms of nano-machines.They simultated eight such nano-machines to create a 'nano-factory'.According to experts,nano-machines could also be used to boost the processing power of future computers.They also have high hopes for nano-machines in treating diseases.The machine is made from 17 molecules of the chemical duroquinone.Each one is known as a 'logic device'.