The 26 Most Awesome Happy Meal Toys Of The '90s. Technically, any toy that came with food was pretty great. But these were exceptional.
In this case, primary storage typically refers to random access memory (RAM), while secondary storage refers to the computer's internal hard drive. RAM, commonly called memory, is considered primary storage, since it stores data that is directly accessible by the computer's CPU.
Computers use two types of storage: Primary storage and secondary storage. The CPU interacts closely with primary storage, or main memory, referring to it for both instructions and data. For this reason this part of the reading will discuss memory in the context of the central processing unit. Technically, however, memory is not part of the CPU.