RAM TECHNOLOGIES

STATIC RAM(SRAM).

This ram wii maintain its data as long as power is provided to the memory chips.it does not need to be re-written periodcally.SRAM is very fast but very expensive than (DRAM).SRAM often used as cache memory due to its speed.

 DYNAMIC RAM(DRAM)

Unlike SRAM,must be continually re-written (refreshing) in order for it to maintain its data. This is done by placing the memory on a refresh circuit that rewrites the data several hundred times per second. DRAM is used for most system memory (RAM) because it is cheap.



ECC MEMORY

Short for error-correction code,Ecc is a method of detecting and then correcting errors within the computer memory.Ecc memory detects multipebit errors and corrects single-bit errors.