DDR stands for “Double Data Rate” is memory that has been replaced by DDR2 and was first launched in 1996. DDR uses both falling edge and the increasing of the machine time that’s the potential of increasing the space of the memory.

Today, the DDR technology is located on computer storage for example DDR and top end video cards -SDRAM.

With data being transferred 64 bits at a time, DDR SDRAM gives a transfer rate of (memory bus clock rate) × 2 (for dual rate) × 64 (number of bits transferred) / 8 (number of bits/byte). Thus, with a bus frequency of 100 MHz, DDR SDRAM gives a maximum transfer rate of 1600 MB/s.

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Christopher Latham Sholes (February 14, 1819 – February 17, 1890) was an American inventor who invented the QWERTY keyboard and along with Frank Haven Hall, Samuel W. Soule, Carlos Gladden and John Pratt, has been contended as one of the …

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