Where can i know in the region of Memory chips?

Where can i know in the region of Memory chips?

http://home.olemiss.edu/~misbook/hdsyunm...

A memory chip is a chip that holds programs and notes either temporarily or ineradicably. The major category of memory chips are RAMs and ROMs.
goto www.wikipedia.com
Seach crucial.com they will tell you anything you requirement to know
Details here. Look for the different types at the right side of the screen.



http://en.wikipedia.org/wiki/sdram...