OS X Yosemite: PRAM

This article has been archived and is no longer updated by Apple.
PRAM

A small amount of your computer’s memory, called parameter random-access memory or PRAM, stores certain settings in a location that OS X can access quickly. The particular settings that are stored depend on your type of Mac and the types of devices connected to it. The settings include your designated startup disk, display resolution, speaker volume, and other information.

Last Modified: Jan 22, 2016
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