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DDR SDRAM specification was finalized by JEDEC in June 2000 (JESD79). [9] JEDEC has set standards for the data rates of DDR SDRAM, divided into two parts. The first specification is for memory chips, and the second is for memory modules. The first retail PC motherboard using DDR SDRAM was released in August 2000. [10]
The official name was Deutsche Demokratische Republik ('German Democratic Republic'), usually abbreviated to DDR (GDR). Both terms were used in East Germany, with increasing usage of the abbreviated form, especially since East Germany considered West Germans and West Berliners to be foreigners following the promulgation of its second constitution in 1968.
ddr, ISO 639-3 code for the Dhudhuroa language; Disarmament, demobilization and reintegration, a component of peace processes; DNA-damage response, for repairing damaged DNA; Double data rate, a data transfer strategy of a computer bus DDR SDRAM, a computer memory standard that uses double-data-rate transfers; DDr., title for a double doctorate ...
DDR SDRAM popularized the technique of referring to the bus bandwidth in megabytes per second, the product of the transfer rate and the bus width in bytes. DDR SDRAM operating with a 100 MHz clock is called DDR-200 (after its 200 MT/s data transfer rate), and a 64-bit (8-byte) wide DIMM operated at that data rate is called PC-1600, after its ...
DDR SDRAM (sometimes called DDR1 for greater clarity) doubles the minimum read or write unit; every access refers to at least two consecutive words. Typical DDR SDRAM clock rates are 133, 166 and 200 MHz (7.5, 6, and 5 ns/cycle), generally described as DDR-266, DDR-333 and DDR-400 (3.75, 3, and 2.5 ns per beat).
Double data rate SDRAM (DDR SDRAM or DDR) was a later development of SDRAM, used in PC memory beginning in 2000. Subsequent versions are numbered sequentially (DDR2, DDR3, etc.). DDR SDRAM internally performs double-width accesses at the clock rate, and uses a double data rate interface to transfer one half on each clock edge. DDR2 and DDR3 ...
Disarmament, demobilisation and reintegration (DDR), or disarmament, demobilisation, repatriation, reintegration and resettlement (DDRRR) are strategies used as a component of peace processes, [1] and is generally the strategy employed by all UN Peacekeeping Operations following civil wars.
The most prominent changes in the German language in the DDR were at the level of vocabulary. [6] Most of the differences in DDR vocabulary were a result of the East German government attempting to construct a new socialist lexicon that would help to create and develop a new socialist identity in the DDR. [7]