Digital keyboard for foreign languages?

OK, so I'm not sure if they even make this, but ideally I'm searching for a full size keyboard version of what the iPhone, or other touchscreen phones can do; ie show locations of letters of a different alphabet. I realize that computers have regional settings and keyboard changes, but that doesn't change the actual printing on the keyboard. I'm a foreign language major, and I learn too many languages to deal with tons of keyboard stickers. Arabic. Thai and Russian are the most ideal examples. Anyone know if such a keyboard exists?

Added (1). I already mentioned I know how to change the keyboard setting on the computer. But once again, that's not what I'm looking for. I don't want to fumble around pressing every key until I find the right one. It would take me 30 seconds to type 1 word.

Your keyboard examples for many languages are available by simply searching within Wikipedia.

Changing the keyboard, I believe you know how to do, involves clicking an icon on your home screen and finding the correct language/keyboard, or going into your settings or preferences and doing it.

I'm not sure about digital keyboards, but you can change the mapping of your keys to a foreign language. I use this for writing Spanish and Swedish. For example, on a Swedish keyboard, 'ä' is where the apostrophe is on an American keyboard. Even though my physical key shows an apostrophe, I know when I'm switched to 'Swedish', if I press the key, it'll produce an 'ä'.It's just a matter of learning the foreign keyboard layout.