Primary storages refer to the storage devices used to store data or programs that are currently being used or accessed by the computer's processor. There are different types of primary storages, including RAM, cache memory, and registers. When referring to these specific types of primary storages, they can be used as synonyms for the phrase "primary storages." Other synonyms for primary storages can include "working memory," "short-term memory," or "active memory." These terms are often used interchangeably to refer to the same type of storage devices that are essential for the computer's processing power and overall performance. No matter which synonym is used, primary storages play a critical role in any computing system.