DDR3-1600 and DDR4-2400 are two different kinds of memory. Fire up your favorite Web search engine and answer the following questions. a. [4 pts] Briefly describe at least two major differences between these types of RAM. (One is DDR3 and the other is DDR4 and One is 1600 and the other is 2400 are not acceptable answers.) b. [2 pts] State competitive prices for a single 8GB stick of each kind of RAM. c. [2 pts] Give the full URLs (web addresses) of where you found the information in answering these questions.