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.
HDD (hard disk drive) - the most common internal storage device used by computers over the past several decades, can store several terabytes (TB) of data. SSD (solid state drive) - serves the same purpose as a hard drive but contains no moving parts; uses flash memory and provides faster performance than a hard drive.