Upgrading Mac OS X Tiger to Snow Leopard...

Apple supports their product for life it seems like :-D You can still get downloads for programs that are no longer supported.

If you have Tiger you're going to have some problems with the Net so you'll need to upgrade to Snow Leopard.

More than likely if you have Tiger you have an Intel System with 1 gb of ram, UPGRADE to 2 gb.
http://www.crucial.com/

Your system won't perform as well in Lion as it would with Snow Leopard, you can't upgrade to Lion!

El Capitan is the latest installment of OS X, before that is Lion, then Snow Leopard, Leopard and Tiger.

Customer Service has ended for Snow Leopard and anything below Snow Leopard, but all you need is the updates of which Apple will provide and a GURU and you'll have an OS that should last, hmmm 2 years?., before upgrading/replacing ;-)

"You can indeed still get all of the security & other OS patches to 10.6 Snow Leopard. You can use the 10.6.8 Combo updater, which will update any version (10.6.0, 10.6.1, 10.6.2, etc) up to 10.6.8. It's the equivalent of an offline Service Pack installer for MS Windows.
10.6.8 Combo updater - https://support.apple.com/kb/dl1399?locale=en_US

You can also still purchase a copy of Snow Leopard here if needed:
http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard
There are likely a few other security updates, Java updates, and others that you will have to let the OS auto update after the 10.6.8 Combo update completes."

"Tiger and Leopard were released in versions for Intel and PowerPC processors. Snow Leopard is the first version released only for Intel Macs. Since the release of Mac OS X 10.7 "Lion", OS X has dropped support for 32-bit Intel processors as well. It now runs exclusively on 64-bit Intel CPUs.
The latest version of OS X is 10.11 "El Capitan", which was released to the public on September 30, 2015."

To upgrade just insert the DVD Leopard and follow the prompts to Install/restart...

Leopard will install upon reboot, so let it do it's boot and you just need to answer what language to load in, and choose the Mac HD. Leopard will tell you that it's updating, Snow Leopard won't.

Snow Leopard will collect information and install components from the desktop should take 20 minutes, then it will reboot and continue the install, should be around 40% left to install...

We recommend loading Leopard First, do updates, then Install Snow Leopard, do updates, and in that order.

quiktip: We recommend doing the 10.6.8 update by itself, do the other two individually as well.

sidenote: Say Replace Conflict (Font Issue)

The upgrade is clean and you'll finally be able to get your Firefox Up to Date, which is the problem with Tiger and Leopard, most go to Snow Leopard to make it all worth while.