- A portion of RAM which has been configured to simulate a disk drive. This speeds up applications considerably, as RAM is much faster than mechanical hard disks for tasks such as storage and retrieval of data. Since RAM is volatile, files must be copied back to hard disks before ending a given session. To avoid loss of data during use of a RAM disk, as might occur during a power failure, a battery backup may be utilized. Also spelled RAMdisk. Also called RAM drive.
- synonymRAM drive