The equivalent of a memory of a human brain will cost $1000

Ray Kurzweil : futurist
1013 bits (=10 TB) of computer memory - roughly the equivalent of the memory space in a single human brain—will cost $1000. One personal computer will have the same processing power as a human brain.

Kurzweil, Ray. 2005. The singularity is near: when humans transcend biology. New York: Viking.