In psychology, the memory drum refers to the concept of a metaphorical drum that retains previously learned information. It represents the idea that memories can be stored and retrieved for later use. The memory drum is a theoretical construct to explain how information is encoded and retrieved in memory processes.

Magnetic drum memory or magnetic drum storage, a type of computer memory/storage that is now long obsolete.

Drum.

A memory lock isn't on a drum kit, but on the hardware itself. It is used to make setting a drum kit easier and give it more support. For example on a Dw 9000 cymbal stand there are 2 memory locks. But they are usually just pieces of metal on hardware that you can secure to make one of the toms easier to mount.

A memory lock isn't on a drum kit, but on the hardware itself. It is used to make setting a drum kit easier and give it more support. For example on a Dw 9000 cymbal stand there are 2 memory locks. But they are usually just pieces of metal on hardware that you can secure to make one of the toms easier to mount.