] "The only time I saw Bill Gates was at the building
] dedication," said Google founder Sergey Brin. "Gates was
] coming down the hall with the department chairman and he
] asked 'What operating system do you have running on all
] these PCs?' Well of course they were all running Linux,
] but the chairman kind of coughed and said the department
] used many different operating systems."

'What OS do those PCs run?'