Duniya Gadgets se chalti hai, aur ek chhota sa device kaise duniya badalta hai wo aap apne mobile phone se jaan hi gaye honge aur usi Gadget ke bina naa hi aap ye show sun paate, naa he hum milo dur dosto se baat kar pate, par aise kaunse Gadgets hein jinhone duniya badli? Chaliye jante hein humari century ke kuch aise gadgets ko jinki wajeh se humari society hi badal gayi