Understanding DDR RAM

What does DDR stand for in the context of RAM technology?

• Direct Data Rate

• Dual Data Rate

• Double Data Rate

• Dynamic Data Rate

How does DDR RAM achieve faster data transfer compared to single data rate RAM?

• By increasing the voltage

• By using a larger memory size

• By sending data on both rising and falling edges of the clock cycle

• By using a single clock signal

What is the process called that allows DDR2 to send more bits at one time to the external memory bus?

• Overclocking

• Buffering

• Prefetching

• Caching

What unique feature does DDR4 have that contributes to its higher speed compared to DDR3?

• Larger memory size

• Single clock signal

• Bank groups for simultaneous prefetches

• Increased voltage

Why are newer versions of DDR not backward compatible with older versions?

• Increased power consumption

• Higher cost

• Different electrical and signaling requirements

• Different physical size