For this reason, the article uses the first person in parts of the narrative. Twenty-five years ago Ajay Bhatt invented the USB while working at IBM. display:none; In good engineering practice, everything is tested to ensure the system is fit-for-purpose. GPS The GPS (Global Positioning System) in cars, computers, and smartphones helps us find our way. Your ideas validation will prevent you from wasting money and time if, you find any of the above results to be negative. A validation engineer is responsible for the systems, mechanics and equipment companies use when they are producing and manufacturing different products. Validations engineers also monitor compliance with safety and quality regulations. border-top: 1px solid #d2d2d2; This time, Guppy refused money for her creation. /*-->