Whats the difference if a computer has 2gb mem and a 250 gb hard drive?

Whats the difference if a computer has 2gb mem and a 250 gb hard drive?
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Answer :

hard drive memory is permanent. that is where you store your documents, files, videos, the OS, etc. The 2GB are Ram, which is temporary memory, where programs can store data while they are running. It gets erased every time you shut off your machine. It is also a lot faster than the hard drive.
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