Memory Type: DDR3 PC3-8500, DDR3 (non-ECC)
Maximum Memory: 16GB
These 21.5" and 27" systems utilize one of the following processors:
3.06GHz Intel Core 2 Duo, 3.33GHz Intel Core 2 Duo, 2.66GHz Quad Core Intel Core i5 or 2.8GHz Quad Core Intel Core i7
Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.
video - installing memory