Memory Type: DDR3 PC3-8500, DDR3 (non-ECC)
Maximum Memory: 8GB
These 20" and 24" systems utilize one of the following processors:
2.66GHz, 2.93GHz, or 3.06GHz Intel Core 2 Duo processor
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