IBM said Wednesday that it will invest $3 billion to develop new semiconductors that will be 7 nanometers and smaller to enable new forms of computing.

The investment by Big Blue is the latest in a key area as it tries to retool into higher growth areas. The company has invested heavily in analytics, its Watson unit and businesses such as mobility and commerce.

IBM's bet is that the next decade will feature systems---cognitive, synaptic and quantum computing to name a few---that will need more than traditional silicon chips. The investment also serves as a reminder that IBM is committed to hardware even though it is unloading its low-end server business to Lenovo.

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