Concept:DDR SDRAM is a type of computer memory that doubles the data transfer speed by using both edges of the clock signal.
Explanation:The full form of DDR SDRAM is Double Data Rate Synchronous Dynamic Random Access Memory.
It is an improved version of SDR SDRAM, which transfers data only on the rising edge of the clock.
DDR SDRAM transfers data on both the rising and falling edges of the clock cycle.
This doubles the data rate without increasing the clock frequency.
The term "Synchronous" means the memory works in sync with the system clock.
"Dynamic Random Access Memory" (DRAM) stores data in capacitors and needs periodic refreshing.
DDR SDRAM is commonly used in computers, laptops, and servers for high-speed performance.
Options A, B, and D are incorrect because they use wrong terms like "Systematic" or "Data Dynamic Rate".
Only option C gives the exact and correct full form.
Answer:Option C: Double Data Rate Synchronous Dynamic Random Access Memory.