06-17-2011, 06:45 PM
Running a computer on Tiger is not a real problem, my G4 still runs Tiger server and will probably still do so until it outlasts its usefulness.
You have just got to expect that it will not run the latest versions of any software, but as long as it still does the job you ask it, using the software it has always run, then that is fine.
Keeping software backwards compatible with old versions of the OS is good in practice, but in reality it has been an albatross around Microsoft's neck. Its a pain, but Apple has learnt from its own, and Microsoft's past mistakes and knows that there comes a time when its just right to cut off some past ties to make the future easier.
Otherwise Mac OSX would still need drivers to support 3.5" floppy drives, 28K modems, 8 bit video cards, localtalk, OS 9 apps and HyperCard. All great technologies in their time but only now needed by a tiny fraction of users.
Its a bit like insisting that railroads keep maintaining water towers by he side of the tracks, just in case a passing steam train needs a water to-up.
Backwards compatibility is good up to a point, then it just eats up resources out of proportion to its use.