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What is a key fob?

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Quick Answer

Related to a term coined in 1653, a "fob" evolved from a term used to describe ornaments hung from a pocket watch, to the term used for a watch pocket, to eventually mean any ornament or item attached to a key ring. Today, the term "key fob" is applied to remote keyless entry devices.

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What is a key fob?
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Full Answer

The evolution of the term followed a relatively lengthy process to get to where it is today, but most automakers rely on this technology and have adopted the term. Key fobs can also be found in the computer networking community, used as a way of providing secure access codes to internal networks from remote sites.

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