[Swordmaker]

I have mentioned before that I run SEVEN different operating systems on my Mac. . . but this guy demonstrates no less than TWENTY-FIVE running on an iMac. . . and they RUN! Multiple instances of various versions of OS X, Windows, Linux, and Microsoft DOS! Amazing! — PING!

Ping to dayglored and Shadow Ace for your lists. . .

Apple iMac Running TWENTY-FIVE
Virtual Machine Operating Systems Simultaneously!
Ping!

If you want on or off the Mac Ping List, Freepmail me.

[dayglored]

Fusion under OS X on a Mac is dynamite.

I have VMs of:

• Windows 7 SP1
• Windows XP SP3
• Windows 2000 SP4
• Windows 98SE
• Windows 95
• MS-DOS (from the W98 era)
• CentOS 6.5
• Fedora 14
• Ubuntu 14.04
• NetBSD 6.0

and have run up to 6 of them at one time (memory limited -- it's a small MacMini). Granted, most of the time it's just the Win7 and CentOS in addition to the OS X host.

[dayglored]

Eight flavors of Windows running at once ... on a Mac ... PING!

You can find all the Windows Ping list threads with FR search: just search on keyword "windowspinglist".

VMware (Fusion on a Mac) is great stuff.

I'll also note in passing that Mac hardware is one of the best (fastest, stablest) platforms for running Windows native (on the metal). This is generally done using the Apple "BootCamp" dual-boot option.