Amotherboard has four dimm slots; three slots are gray and the fourth is black. what type of memory is this board designed to use?

A motherboard will require DDR3 type of memory.

Explanation:

In the motherboard, we use DDR3 RAM. It stands for "Double Data Rate 3" full name of this ram is DDR3 SDRAM where SDRAM stands for "Synchronous Dynamic Random-Access Memory". It was firstly implemented in the 1970s.

the major difference between the two is the objective and the reward of the game. candy crush has a puzzle theme with the objective of meeting a specific quota of points or objects, you are able to gain access to the next level and compete with peers on the process. on duolingo the objective is rather different, you are given sets of questions for you to answer for you to move to the next level and as for the reward, you are able to learn available language as this is an app developed to teach the user about other languages.