NEW YORK — Your most expensive piece of electronics probably is not your flat-panel TV or computer. More likely, it's your car, which can pack 50 microprocessors to control everything from the fuel mix to the rearview mirrors.
The recalls and other technical problems besetting Toyota in the last few weeks highlight the risks of relying on electronics instead of the mechanical rods and cables that controlled vehicles for most of the 20th century.
Such advancements bring many benefits, but the worry is that the car is a computer on wheels that could freeze up and potentially crash. No less a computer celebrity than Apple Inc. cofounder Steve Wozniak has said his Toyota Prius sometimes accelerates on its own.
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