Is computer have greater storage capacity than human?

Robert Birge (Syracuse University) who studies the storage of data in proteins, estimated in 1996 that the memory capacity of the brain was between one and ten terabytes, with a most likely value of 3 terabytes. Such estimates are generally based on counting neurons and assuming each neuron holds 1 bit. Bear in mind that the brain has better algorithms for compressing certain types of information than computers do.

http://www.sizes.com/people/brain.htm

The current P55 chipset supports 6 sata ports so you can add 6 2TB hard drives to a normal home PC for a 12 TB capacity.