Complex sentence: Qualcomm introduced its "Krait" microprocessor architecture in the second generation of Snapdragon SoCs in 2011, allowing each processor core to adjust its speed based on the device's needs.
Split into simpler sentences: Qualcomm introduced its Krait processor architecture in the second generation of Snapdragon SoCs in 2011. Krait allowed each processor core to adjust its speed based on the device's needs.