Random access memory
Random access memory
(also main memory, system memory, RAM)
Random access memory definition
Random access memory (RAM) is a form of volatile computer memory that stores data and machine code currently being used by a computer’s processor. It allows data to be read or written in any order, granting fast access to information. RAM is a crucial component of a computer system because it temporarily holds data and instructions that the central processing unit (CPU) needs to execute tasks.
Random access memory examples
- Dynamic random-access memory (DRAM): A type of RAM that stores each bit of data in a separate capacitor within an integrated circuit. DRAM is slower and less expensive than SRAM.
- Static random-access memory (SRAM): A type of RAM that uses flip-flop circuits to store data. SRAM is faster and more expensive than DRAM.
Comparing RAM to other memory types
- RAM vs. Read-Only Memory (ROM): RAM is volatile, meaning it loses its data when power is disconnected, while ROM is non-volatile, retaining its data even without power. ROM is used for storing firmware and other permanent information, whereas RAM is used for temporary storage.
- Dynamic random-access memory (DRAM): A type of RAM that stores each bit of data in a separate capacitor within an integrated circuit. DRAM is slower and less expensive than SRAM.
Tips for optimizing RAM usage
- Close unnecessary applications to free up RAM space.
- Upgrade your system’s RAM for better performance.
- Use a solid-state drive (SSD) to improve system speed.