You can install World of Warcraft on as many computer as you want since there is no code required to install the game itself. However, you can only log on to an account from one computer at a time. If you want to run multiple computers at the same time, you will have to pay for another account.
No it does not.
This is not possible, the original (classic) World of Warcraft must be installed first as the Burning Crusade is an expansion (addon). You can download the installers from the World of Warcraft website.
No
No it is impossible you have to install Warcraft Reign of chaos first then you can play Frozen throne
In a sense, yes, but in another sense, no. You do not need to install Minecraft to play it on a computer, you can simply run it in your internet browser on Minecraft.net. However, if you want to run Minecraft without an internet connection, or without visiting Minecraft.net, you must install Minecraft on your computer. You can install Minecraft on multiple computers under the same account, but your saved worlds will not sync between computers.
You install flash, boy!
you need to buy a cord for it!
You can't play dota without installing warcraft 3.
No.
Technically, no, but it is extremely suggested that you do, as the computer would be nearly useless without memory.
No, you need to buy the disks and install the game to be able to use any features of the game.
there are special programs you can install to your computer they can be kinda pricey though! ^_^