no this will only work for one specific update at the time, as minecraft is updated so are the servers with it so if you want to go on newer server then you have to update your client also.
Yes. Seeds will work on any cracked versions of Minecraft or any versions of launchers. If you would like to try some out, check the link. All those seeds work!
By pc I'm assuming you mean Windows. Minecraft works on definitively works on all versions of Windows including and after XP. Minecraft also works on Mac and Linux. Minecraft may work on other operating systems as long as they support Java, OpenGL, and has the capability of handling graphics.
Minecraft Classic is the only one. Though it is crap and all you can do is place a few blocks and play on crap servers
You can play minecraft on Windows, ios, and or Linex computers all have their download versions located at Minecraft.net
The easiest way I found is to go to the .minecraft folder. Once you do that you want to clear all of your mods. Go to mods and do Ctrl+A and then Ctrl+D and click yes. Then click versions and delete all of the forge versions. I hoped this helped anybody who need it!!
Yes, should work with all Galaxy Note II versions.
All versions of Excel should work with all versions of Windows.
Almost all so called 'hacked' versions of minecraft are full of viruses, your best chance is to buy it from the real website, minecraft.net
No
You can download a Minecraft version changer by copying and going to this link:https://sites.google.com/site/mrflippit/downloadThis version changer has all the versions form Minecraft 1.3.1 and back. You can read more on the site.
All classic versions are currently free. Anything newer costs money.
You do not buy minecraft beta. If you have already purchased a minecraft account all you have to do is sign into the launcher (the first window that pops up before loading the game itself) and click on "edit profile". That will open up another window with different options to select. under "select versions" click on "allow old beta versions (2010-2011)", all beta versions of mincraft should then be avilaible under the "use version" selection. I hope I was able to answer your question fully. have fun :D