PC maker Dell reported a 24 percent increase in profits for its most recent quarter, when it made $749 million on sales of $11.51 billion. The company also noted that PC sales rose a whopping 25 percent during the quarter, whereas its operating margin was relatively unchanged at 18.2 percent. Dell innovates in several ways, but its most impressive gains might very well be in operating processes. According to CEO Michael Dell, the company will use a variety of methods to cut operating costs by $1.5 billion this year. For example, Dell now uses machines rather than human beings to box computers.