Freescale unveils Magnetic MRAM memory

The chip, called magnetoresistive random-access memory (Mram), maintains data by relying on magnetic properties rather than an electrical charge.

One analyst told the Associated Press news agency that the chip was the most significant development in computer memory for a decade.

Mram chips could find their way into many different electronic devices.

The benefit of Mram chips is that they will hold information after power has been switched off.

Freescale has been producing the four-megabit Mram chips at an Arizona factory for two months to build up levels of stock.