Sony Corp. is selling its advanced computer chip operations to Toshiba, both companies said Thursday in the latest sign that Sony is raising cash and shedding operations to focus on its core electronics sector.

The sale, to be completed by March, includes the manufacturing business for the Cell, the chip that powers Sony's PlayStation 3 video game consoles, Toshiba Corp. spokeswoman Hiroko Mochida said.

Toshiba, which collaborated with Sony on developing and making the Cell, will continue to produce chips for Sony's video game unit, she said.