A tough disk or a tough drive refers to the element of the computer, which shops knowledge and is placed internally. The computer’s working system, programs and user data are all saved in onerous disks. Nonetheless, with the evolution of computer systems computing technology, Web access, virus and other external threats, the IT giants have devised exterior exhausting disk drives. An exterior exhausting disk is placed outside the main system and is moveable and encased in a thermatically sealed cover. an interface cable, connects this to the main system. With its plug and play design, this exterior onerous disk has grabbed the market. Be it for the house or office, this plug and play system has made backing of information and knowledge way more safer and secure. Accessible throughout a number of on-line procuring portals, this is definitely a pleasant purchase.