WordNet
memory device
n. a device that preserves information for retrieval [syn: storage device]
Usage examples of "memory device".
The true information, the coordinates of the highlighted stars, may be held in a crystalline memory device.
Since the second student compared it to the word homes, its obvious that the other speakers sentence was also a memory device of some sort--no doubt one thought up on the spot since it dealt with voting and they were entering the polling place.