My old XP computer had a little button down in the tray that I could click on to switch between English (United States) and Greek Polytonic. I think at one time it also had Hebrew, but that disappeared at some point. When I would click on Greek Polytonic my typing would come up in Greek, and when I was done typing Greek I could switch back to English. I gather that the Greek I typed could be read by just about anyone with a fairly modern computer, even without their having to install fonts. I take it this functionality is called "unicode" and it's what b-greek is using now too.
How do I get my new Windows 7 computer to do something similar? Or, how do I get to where I can type in unicode in Windows 7?