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A memory module is a printed circuit board (PCB) that holds RAM chips and plugs into a computer's motherboard to provide temporary, fast storage for the CPU. Commonly known as a RAM stick, it allows the computer to quickly access data for running applications and multitasking. Examples of memory modules include DIMMs for desktops and SODIMMs for laptops.

How it works

Temporary storage: Memory modules provide a computer's short-term memory (RAM) to hold data that the CPU needs for current tasks.

Performance boost: By having more RAM, the CPU can access data faster and doesn't have to retrieve it as often from slower long-term storage, improving performance.

Volatility: RAM is volatile, meaning it loses all data when the power is turned off. This is why it's important to save your work to a storage device.