Random-access memory (RAM)
Random-access memory (RAM) is a type of computer memory that is used to store data and machine code currently being used. It allows data to be read from and written to almost instantly, regardless of the order in which it's accessed—hence the term random access . Key Characteristics of RAM: Volatile : Data is lost when the power is turned off. Fast : Much faster than storage devices like HDDs or SSDs. Temporary storage : Holds data for active applications and processes. Essential for performance : More RAM allows more applications to run smoothly at the same time. Types of RAM: DRAM (Dynamic RAM) – Needs to be refreshed thousands of times per second. SRAM (Static RAM) – Faster and more reliable but more expensive; used for cache. DDR SDRAM (Double Data Rate Synchronous DRAM) – Common in modern PCs (e.g., DDR4, DDR5). Common Use Cases: Running operating systems and applications. Temporary data storage during program execution. Caching data...