Since this is directly relevant to my book project I should mention the excellent display/museum of computing history that is housed where I work in the Dept. of Computer Science at the University of Auckland, New Zealand (click here for the display website).
Along one wall of the long entrance way to the Dept. is a timeline of computing from pre-1950's to the present day.
Then on the elevator foyer of each floor are themed displays of computing hardware. The highlight of these is probably the University's complete IBM 1620 mainframe computer, which was installed at the University in 1963.
click here for a Google Map).