What type of circuit board is installed on a motherboard to hold memory?

The correct answer is DIMM, which stands for Dual In-line Memory Module. DIMMs are the type of circuit boards specifically designed to hold RAM (Random Access Memory) on a motherboard. These modules provide the necessary connectors and pathways for communication between the RAM and the motherboard, ensuring that the CPU (Central Processing Unit) can access data for processing efficiently.

The structure of DIMMs allows them to incorporate multiple memory chips along a single board, making them capable of higher storage capacity and speed compared to older memory modules. This is crucial for the overall performance of a computer system, as sufficient and fast memory is required for efficient data processing and multitasking.

Expansion boards refer to circuit boards that can be added to a motherboard to provide additional features or capabilities, such as extra USB ports or network interfaces, but they do not directly refer to memory. A video card is a specific type of expansion board that is dedicated to graphics processing, while PCB (printed circuit board) is a general term that describes any board used to mechanically support and electrically connect electronic components, not specifically memory. Thus, DIMM is the precise term that identifies the component responsible for holding memory on a motherboard.