Currently Being ModeratedNov 18, 2012 11:46 PM (in response to xiaofong)
Don't confuse the memory.
The 2GB you refer to is RAM and certainly insufficient to run Mountain Lion. Check your specs for your machine; you need at least 4GB for ML and 8GB would be better.
The 452 GB is disk memory and largely used for storage purposes.
Currently Being ModeratedNov 19, 2012 10:00 AM (in response to seventy one)
Memory = RAM (Random Access Memory)
Storage = HDD (Hard Drive Disc)
How much Memory does your Mac have? Apple menu > About This Mac > Memory
Currently Being ModeratedNov 19, 2012 3:09 PM (in response to Malignance)
I think you are addressing the wrong person. Never mind. My post took into account that the OP appeared to be trying to download Lion and had insufficient RAM to support the action. Moreover s(he) did not appear to understand the difference between RAM and HDD and would need to check his machine specs.
I think we shall now have to await xiaofong's return in order that his needs are clarified.