What Does Dual In-line Memory Module (DIMM) Mean?

A dual inline memory module (DIMM) is a small-scale circuit board that holds memory chips on the motherboard. DIMM incorporates a series of memory called dynamic random access memory (DRAM), which provides primary storage, the main memory that continually reads and executes stored instructions or data directly to the CPU.

Techopedia Explains Dual In-line Memory Module (DIMM)

DIMM contains a series of DRAM integrated circuits. The modules are attached to a printed circuit board, with several RAM chips on a single circuit board, which is connected to the motherboard. With direct memory access (DMA), a PC processor can access any part of the memory directly without having to proceed in chronological order from a starting place. With DRAM, RAM accesses all parts of the memory directly.