I just read Vannevar Bush's article and was really "captured" by his quote about Mathematicians.

"A mathematician is not a man who can readily manipulate figures; often he cannot.  He is not even a man who can readily perform transformations of equations by the use of calculus.  He is primarily an individual who is skilled in the use of symbolic logic on a high plane, and especially he is a man of intuitive judgement in the choice of the manipulative processes he employs."

 Apart from liking his estimation of us math folk.  I found interesting playing a game of most closely matching the current technologies which match his descriptions.  I found roughly what I think are: printer, server, barcodes and credit cards, file manager or windows' explorer, tabbed browsing and of course the hyperlink.