Buffer storage and Storage device

Buffer storage noun - (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system.

Storage device and buffer storage are semantically related. In some cases you can use "Storage device" instead a noun phrase "Buffer storage".

Storage device noun - A device that preserves information for retrieval.

Buffer storage and storage device are semantically related. Sometimes you can replace phrase "Buffer storage" with "Storage device", this phrases are similar.