In the early 1980s [wikipop]Macintosh[/wikipop] was just a code name for the then unreleased new computer from Apple. It was thought that Bicycle would make a good name for the computer. A contemporary Apple advertisement had explained how humans were not as fast runners as many other species, but a human on a bicycle beat them all. Personal computers were “bicycles for the mind.”
Fortunately the team developing the Mac did not like the Bicycle moniker and just kept calling it the Macintosh and so that is what it became.
See: Folklore / Bicycle by [wikipop]Andy Hertzfeld[/wikipop]