RAM disk

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Noun1.RAM disk - (computer science) a virtual drive that is created by setting aside part of the random-access memory to use as if it were a group of sectors; "access to a RAM disk is very fast but the data it contains is lost when the system is turned off"
drive - (computer science) a device that writes data onto or reads data from a storage medium
RAM, random access memory, random memory, random-access memory, read/write memory - the most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
References in periodicals archive ?
A RAM disk functions like a hard drive, only with dramatically reduced read and write times, allowing applications to perform up to 340 times faster.
It also provides a Unix Fast File System (FFS) implementation that supports hard disks (IDE and EIDE), CD-R and CD-RW drives, RAM disk, compact flash, and disk-on-a-chip, complete with APIs for POSIX, C++ iostreams and C standard I/O.
One thing to remember is that if you are using a RAM disk, you should back up all important files as zapping will erase the disk.