Yang resigned frYahoo co-founder Jerry Yang has left the company, the latest dramatic change at the top of the embattled Internet company.om all his posts at Yahoo effective Tuesday.

The chairman and CEO of United Microelectronics (UMC), the second-largest contract chip maker in the world, announced his resignation on Wednesday, with the company immediately naming his replacements.

Intel's resignation from the One Laptop Per Child Project's board of directors will have "no impact" on the group's operations, since the chip maker contributed little to the project since joining last year, OLPC President Walter Bender said in an interview.

Still gasping from the resignation of its chief executive in January and an ongoing investigation of its accounting practices, Dell Inc. reported fourth quarter profits of US$673 million, down sharply from the $1 billion it reported for the same period last year.