Intel makes the microprocessors found in $80$ percent of the world$$s personal computers. Today, it is one of the most valuable brands in the world, with revenues exceeding $$37$ billion. In the early days, however, Intel microprocessors were known simply by their engineering numbers, such as $80386$ or $80486.$ Since numbers can$$t be trademarked, competitors came out with their own $486$ chips and Intel had no way to distinguish itself. Nor could consumers see Intel$$s products, buried deep inside their PCs