Buy your computing power when needed

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IBM launched the new plan last month. The idea is that by using advanced computer networks and other new technologies, businesses will be able to buy computing power as it's needed, similar to the way electricity is purchased.

Big Blue is making a big bet on the model, setting up a new on-demand computing group and committing to spending $10 billion on research and development, company initiatives and acquisitions, CEO Sam Palmisano said recently.