DDR operates at a voltage of 2.5 V, compared to 3.3 V for SDR SDRAM. The different pin configuration for DDR RAM Modules: 172-pin MicroDIMM, used for DDR SDRAM 184-pin DIMM, used for DDR SDRAM 200-pin SO-DIMM, used for DDR SDRAM and DDR2 SDRAM 204-pin SO-DIMM, used for DDR3 SDRAM 214-pin MicroDIMM, used for DDR2 SDRAM
How and why did the design of castles change between 1066 and 1666?   At first they would have had a Motte And Bailey Castle they then changed it to a square keep becuase the wood would rot easily, it could be burnt down to the ground wit â¦ hin minutes and it wuold be easier to attack.
M any castles in Breconshire are of the type called motte and bailey, that is the large steep-sided conical mound with a defensive enclosure at its base. Later, or sometimes simultaneously with these constructions, stone elements were added to the castle. n the early Medieval period in Wales and the border up to 1282, castles in the true sense of the word, were for defence. Other buildings more like country houses were built where the primary function was living accommodation.