DDR RAM doubles its speed by using both the rising and falling edge of the clock signal. The advantage of DDR and QDR signaling is that the clock rate does not have to be increased. So the integrity of the signal is not compromised since the throughput can be increased without increasing the clock rate.
The Value of the Mean will Double as well.
SD DDR2 Ram is a double data rate synchronous dynamic random access memory interface. In addition to double pumping the data bus as in DDR SDRAM, (transferring data on the rising and falling edges of the bus clock signal), DDR2 employs an I/O buffer between the memory and the data bus so that the data bus can be run at twice the speed of the memory clock. The two factors combine to achieve a total of 4 data transfers per memory clock cycle.
Ddr stands for double data rate. Which actually doubles the speed compare to sd ram
By transferring data on both the rise and fall of the clock speed
Data transfer rate (also called bandwidth)
Memory speed references how fast, usually measured in megahertz (MHz) of computers RAM and ROM modules. For example DDR2 (double data rate 2) PC2 6400, has a speed of 800-MHz.Modern DDR3 and GDDR5 can be much faster.
Yes they are definitely different as DDR stands for Double Data Ram & SDR stands for Single Data Ram and further explanation can be found here http://en.wikipedia.org/wiki/DDR_SDRAM
Memory speed references how fast, usually measured in megahertz (MHz) of computers RAM and ROM modules. For example DDR2 (double data rate 2) PC2 6400, has a speed of 800-MHz.Modern DDR3 and GDDR5 can be much faster.
Data Transmission speed is the number of bits per second that can be transmitted. Propagation speed is the speed at which a signal moves through a medium. Gateway Technical College, Elkhorn WI
the logical data independence is hard to achieve because all the manipulation is belonging in logical data independence but in physical data independence only show the physical view .
The data type for 0.38 is double.
processing speed of the computer will be increased when the data bus is wider