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Using Linux you can connect multiple keyboards, monitors etc. and use one CPU with multiple users, each logged in to their own home environment.

See what I mean here: Linuxgazette

Is there any way to achieve the same on OS X?

Clarification: All viewers seem to understand this question as: remote logon, or remote X. This is NOT the question.

I hope the following diagram will clarify:

|single |
|box    |

Remark: It seems X11 is available on OS X. I haven't seen any practical examples yet. Remote X seems possible using X11. Not sure at all about multiseat capability with additional mouse and keyb..

Perhaps this may be 'a' way to go?

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Something like this?… – slhck Oct 28 '11 at 12:07
Of course, that's what UNIX was actually used for. – m0skit0 Oct 28 '11 at 12:15
@slhck Thanks, but I already found this article. This method uses remot logon, so in fact you still have 2 machines running, whereas the other method uses only 1 cpu/machine. – Erwin Oct 28 '11 at 12:28
@m0skit0 I'm aware of that too, but can you tell me how to do it? You should be having multiple X-servers if I'm not mistaken, and change your X-config. I'm familiar with this on Linux but not on Mac, hence my question.. – Erwin Oct 28 '11 at 12:29
I think it might have been possible in really really old versions or OS X's predecessors. Maybe here's something better suited? – also see: Mac OS X multi-user thin client server (terminal server)? – slhck Oct 28 '11 at 12:45

Mac doesn't use X11 for its GUI so this setup is not possible with a mac. You could try installing linux on your mac and trying this out but by the looks of the setup it would have to be a mac pro due to the multiple graphics cards.

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