Computers Process Information Very Differently from Computers

According to the article referenced below, the entire archived content of the Internet occupied three petabytes (3 x 1000 terabytes) in April 2009. 

It is thought that one human brain may store roughly one petabyte. Though there may be some similarity in storage capacity between the quantity of information on the Internet and information stored in the human brain, quantity is the main point of similarity, since the information is stored and processed in totally different ways by people and computers.

Sandra Aamodt and Sam Wang, "Guest Column: Computers vs. Brains," New York Times Blogs, 03-31-2009.