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RAM disk

 
Sci-Tech Dictionary: RAM drive
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(′ram ′drīv)

(computer science) A portion of a computer's random-access memory (RAM) that is made to simulate a disk drive. Also known as RAM disk.

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Computer Desktop Encyclopedia: RAM disk
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A disk drive simulated in memory. Processing is faster because there is no mechanical disk action, only memory transfers. Files are copied to the RAM disk, and all reads and writes take place in memory. Updated files are copied back to disk before the power is turned off. Same as E-disk and virtual disk.

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