The Parameter RAM, or PRAM, on your Mac is a small amount of non-volatile memory (ie, persistent memory that is not cleared when the power is off) that is used by the system to hold hardware configuration settings such as the audio volume at startup, the default boot disk, and various boot arguments to pass to the default operating system.

Sometimes specific problems your Mac may encounter are a result of corruption in the PRAM, where variables are not stored properly. Continue reading ⇒