usb to usb datatransfer

Today the need for the portable devices is well known to us. We can easily find the USB and its applications everywhere around us. The applications of the USB are computer peripherals such as keyboard, pointing devices, digital cameras, printers, portable media players, disk drives and network adapter, both to communicate and to supply electric power. It has become common place on other devices, such as smart phones,PDAs and video game consoles. USB has effectively replaced a variety of earlier interfaces, such as serial and parallel ports, as well as separate power chargers for portable devices. But the main disadvantage of USB devices is that it requires the use of PC for their operation. Carrying a PC just for the sake of data transfer is not affordable these days inthe age when people want all devices to be handy. Moreover, transferring data via a computer involves a lot of power to be wasted. Also, the threat of viruses and malware has made the life of computer users more complicated. These viruses get activated as soon as the device is plugged into the system and get copied along with other data from one ash device into another. So a solution is provided by means of implementation of a small device that carries out the required task. The small footprint and ease of portability makesit a choice for the data transfer. This device will help the user to select a particular datafile from the mass storage device connected to one of the ports and transfers it to the othermass storage device using some controls like list, copy provided on the front panel. II. BLOCK DIAGRAM Fig 1. Block Diagram of Our Project