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Definition: memory cell

One bit of memory. In dynamic RAM (DRAM) memory, which is the main memory in a computer, a cell is made up of one transistor and one capacitor. In static RAM (SRAM) memory, which is used for a high-speed cache, a cell comprises six transistors. In both types, turning the power off deletes the memory's content. See bit, dynamic RAM and static RAM.

Flash Memory Storage Is Made of Cells
The flash memory used for solid state drives (SSDs) and USB drives also stores bits in cells; however, when the power is turned off, the memory cells retain their content (see flash memory).