dell technologies posted betterthanexpected quarterly sales though profits were below street estimates due a higherthanexpected tax rate offering fresh evidence of continued strong demand for personal computers from both corporate and consumer customers for its fiscal fourth quarter ended jan 28 the pc server and storage provider posted revenue of 28 billion up 16 from a year ago and at the high end of the company’s guidance range of 27 billion to 28 billion the consensus call on wall street was that revenue