The chief executive of PortalPlayer, the start-up whose chip powers Apple Computer's iPod digital music player, has resigned.
John Mallard, who was chief technology officer at National Semiconductor before helping launch PortalPlayer in May 1999, stepped down last week. No reason was given for the move, which was made by "mutual agreement" with the board, according to Michael Maia, the company's vice president of marketing.
"The board has requested, and (Mallard) has agreed, to stay on in a consultative role," Maia said. The company's chairman, former National Semi executive Richard Sanquini, has been named acting CEO.