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.
Early castles relied on the surrounding landscape to provide much of the protection. Early castles were made of wood and built on hills of mottes. Surrounded by a high, wooden palisade, motte and bailey castles were used widely until the Norman invasion of 1066.These fortifications proved too easy to burn, and stone was then used more frequently.arly castles relied on the surrounding landscape to provide much of the protection. Early castles were made of wood and built on hills of mottes. Surrounded by a high, wooden palisade, motte and bailey castles were used widely until the Norman invasion of 1066.