-- And this is a testament to the incorrigable lameness of Microsoft: is there an intrinsic reason that Windows7 cannot be installed over XP, or even XPpro over XPhome, and retain the user settings as opposed to dumping everything into a "Windows Old" folder and fucking it all up anyway?
This is what you can do with the Mac OS:
* Install version Mac OS v1.0 on a 400k single-side floppy disk in a Mac 128k. Set up some user preferences, and customize the desktop layout with icons in certain places, background picture, etc.
* Launch the disk in a Mac Plus equipped with a 20mb hard-drive. Using the "bless Finder" trick, unbless the System Folder on the diskette. Copy the contents of the diskette to the 20mb drive. Bless the System Folder on the hard-drive.
* Upgrade version to version 4 then 6.08 on Mac Plus.
* Take the 20mb drive out and move it to a Mac IIci equipped with a secondary 40gb SCSI drive. "Unbless" the System Folder. Drag-copy everything from the 20mb to the 80bm. "Bless" the System Folder on the 80gb. Turn machine off and switch the drives. Restart. Upgrade to System 7 and then System 8.
* Move the hard-drive to a "Beige"-model Mac G3 equipped with a secondary 40gb IDE drive. Do the unbless/bless trick to copy over to the IDE drive, turn-off, swap drives, restart. Convert to HFS+. Upgrade to System 8.5 and then 9.2.
* Move the hard-drive to a Mac G4 tower with at least 512mb ram. EITHER Attach a SATA hard-drive to the IDE chain with a $10 converter clip OR attach an external USB drive to a $10 USB2 PCI card added to the machine. Update the system on the IDE to OSX 10.0, then OSX 10.4 Tiger "Fat". Perform all possible updates. Launch Disk Utility and partion the SATA or external drive to GUID. Google and download Carbon Copy Cloner, and duplicate the drive to the SATA or external drive.
* Move the SATA or external drive to a contemporary core2duo Mac model. Start the machine with the Option key held down. Launch the Tiger "Fat" drive, attach internet, and download and apply all available updates. Carbon Copy Clone the drive to the internal drive. Power down.
* Now, with the appropriate DVD (or DVD imaged onto a USB external drive or flash-stick), restart the Mac with Option key held down, and launch Snow Leopard installer. Upgrade to Snow Leopard. Restart the machine while connected to the 'net, then download and apply all updates.
*** You are now current. ***
DURING ALL OF THIS....
-- You will never be asked for a serial number.
-- You preference settings will not be altered.
-- As late as the OSX Tiger "FAT" stage, some of your System 1.0 apps might still run officially supported via "Classic Mode" (in which OS9 launches in emulation) -- given that millions of Macs are still currently running Tiger, this is a span of almost thirty years' worth of backward compatibility). I am willing to guess there are Snow Leopard-compatible third-party applications which maintain the emulation.
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