DRAM- dynamic random access memory
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DRAM- dynamic random access memory
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DRAM - dynamic random access memory
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DRAM (dynamic RAM), computer memory in which bits are stored in capacitor cells that need to be continually recharged or refreshed. Dynamic random access memory (DRAM) is the most common kind of random access memory for personal computers and workstations. Memory is the network of electrically-charged points in which a computer stores quickly accessible data in the form of 0s and 1s. Random access means that the PC processor can access any part of the memory or data storage space directly rather than having to proceed sequentially from some starting place. DRAM is dynamic in that, unlike static RAM (SRAM), it needs to have its storage cells refreshed or given a new electronic charge every few milliseconds. Static RAM does not need refreshing because it operates on the principle of moving current that is switched in one of two directions rather than a storage cell that holds a charge in place. Static RAM is generally used for cache memory, which can be accessed more quickly than DRAM. Dynamic RAM stores each bit in a storage cell consisting of a capacitor and a transistor. Capacitors tend to lose their charge rather quickly; thus, the need for recharging. A variety of other RAM interfaces to the computer exist. These include: fast page mode RAM (FPM), extended data output RAM (EDO) and Synchronous dynamic random access memory SDRAM) |
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Worldwide Semiconductor Corp. P.O. Box 391 Shoreham, New York 11786 USA  |