Introduction Random‐access memory (RAM) is a form of computer data storage and is typically associated with the main memory of a computer. RAM in popular context is volatile but as would be seen later on in the discussion, they need not be. Because of increasing complexity of the computer, emergence of portable devices, etc., RAM technology is undergoing tremendous advances. This report looks at some recent advances in RAM technology, including that of the conventional Dynamic Random Access Memory in the form of DDR 3 (Double Data Rate Type 3). We also look at the emerging area of Non‐volatile random‐access memory (NVRAM). NVRAM is random‐access memory that retains its information when power is turned off, which is described technically as being non‐volatile. This is in contrast to the most common forms of random access memory today, dynamic random‐access memory (DRAM) and static random‐access memory (SRAM), which both require continual power in order to maintain their data. NVRAM is a subgroup of the more general class of non‐volatile memory types, the difference being that NVRAM devices offer random access, unlike hard disks. Double Data Rate 3 Synchronous Dynamic Random Access Memory DDR 3, the third‐generation of DDR SDRAM technology, is a modern kind of DRAM with a high bandwidth interface. It is one of several variants of DRAM and associated interface techniques used since the early 1970s. DDR3 SDRAM is neither forward nor backward compatible with any earlier type of RAM due to different signaling voltages, timings, and other factors. It makes further improvements in bandwidth and power consumption in comparison to DDR 2 . DDR3 manufacturers began fabrication using with 90 nm technologies. With increasing production volumes, they are moving toward 70 nm technology. DDR3 operates ... [continues]
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