Memory buffer
A memory buffer was a component of a starship's short term data storage.

In 2375, The Doctor discovered his short term memory buffers had been deleted. This proved to be a clue that someone had tampered with his programming to prevent him from remembering recent events. ()

In 2383, Rok-Tahk rebuilt Hologram Janeway's holographic program after she was deleted. She was only able to do so because the memory buffers for Janeway's program hadn't yet been overwritten. ()
Computer technology
Computer programming