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See Inside August 2005

Morphware

Magnetic logic may usher in an era in which computing devices can change instantly from one type of hardware to another

Flexibility or performance?

That choice is a constant trade-off for microprocessor designers. General-purpose processors in personal computers execute a broad set of software commands that can cope with any task from graphics to complex calculations. But their flexibility comes at the expense of speed. In contrast, application-specific integrated circuits (ASICs), optimized for a given task, such as the computing required in graphics or sound cards, are very fast but lack adaptability.

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