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== Overview ==
"An [[ISP]] 'caches' certain popular [[content]] by [[storing]] those [[file]]s on its local [[server]]. When [[user]]s [[click]] to [[access]] cached [[content]] — which will typically include items on the [[home page]] but also could include other [[content]] as well — it is [[accessible]] directly and quickly from the [[ISP]]'s [[server]]s, and the [[user]] need not [[download]] the [[page]]s over the [[Internet]]."
Regardless of its duration, though, whenever a temporary [[copy]] of [[information]] is created, it will likely be a [[copy]] not just for [[computer]] purposes, but also for [[copyright]] purposes. A fortiori a temporary [[copy]] on a [[hard disk]] is a [[copy]] for [[copyright]] purposes because such [[storage]] typically does not become erased when the power is turned off. Much caching is in fact accomplished by [[storage]] on [[hard disk]]s, and many caching technologies result in the creation of quite persistent [[copies]].
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