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.
A List of English Castles. Every famous castle from England has been included. Originally made of earth and wood, later castles were built of stone, so many still survive today. Spanning a period of 900 years during the middle ages, castles come in many styles of architecture and design.