How do I redownload mountain lion

I purchased a new iMac that came with Mountain Lion 10.8, it did not come with the install disk. Is there a way to download the installation software?
Thanks,
Peter

There's no way to download the entire installer that I know of when 10.8 is included with the Mac. You can, however, create a recovery disk from which you can boot a system and reinstall when/if necessary. See:
http://support.apple.com/kb/DL1433
Regards.

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