Intel moved to defend its turf -- and possibly its future -- by inking deals to supply next-generation Atom chips to smartphone makers Motorola and Lenovo Motorola and Lenovo.

The agreements, announced this month at the Consumer Electronics Show in Las Vegas, mark Intel's latest effort to enter the burgeoning -- and lucrative -- smartphone market, where most devices currently feature chips designed by ARM Holdings.

Dan Olds, an analyst at Gabriel Consulting Group, said that while Intel still sells hundreds of million of chips a year, ARM partners like Nvidia, Samsung, Texas Instruments and Qualcomm are shipping billions of "increasingly sophisticated devices" that are built with ARM chips.

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