Mass production refers to a factory producing a batch of products in large quantities. For example, before USB drives are shipped from the factory, they need to be bulk-formatted into a certain format, such as setting an entire batch of USB drives as USB-ZIP devices. Ordinary users can use the mass production software utilized by manufacturers to reconfigure the USB drives into other combinations. For instance, you could set the USB drive to emulate a combination of a USB-CDROM, a USB-ZIP, and a USB-HDD.