storage hierarchy

Storage hierarchy refers to the organization of data storage options based on speed, cost, and size. At the top are small, fast, and expensive storage solutions like cache memory, which quickly access frequently used data. Below are larger, slower, and cheaper options such as RAM (main memory) and secondary storage devices like hard drives or SSDs. At the bottom are bulk storage solutions like tape drives, used for archiving large data over time. This hierarchy balances performance and cost, ensuring quick access to important data while efficiently managing overall storage needs.