Lenovo G500: F8 key in Windows 7, what does it do?

THK

Honorable
Nov 1, 2012
3
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10,510
I'm planning to buy a Lenovo G500 laptop.

Of all the multimedia functions that are implemented on the F1-F12 keys, there's one that's a mystery to me. It's the F8 key, and according to the user's manual, it says "Show all currently open apps". The key looks like three small squares, and "F8" below them.

Now, I know that "apps" are used on Windows 8. The question, for all of you who have that (or similar) laptop and use Windows 7: What does that key do in Windows 7?

Thanks in advance.