Come to think about it, since Windows 3.0, Windows 95, 2000, ME, XP, Vista, and Windows 7, does any Windows have a capability of giving a "beep beep" notification to me, let's say I need to go meet somebody after 30 minutes?

Or give a "beep beep" at 2:30pm?

I hope to hear some sound instead of a pop up window as I may be writing something on the desk instead of looking at the computer.

I usually don't want to install 3rd party app for this purpose, as you never know what the app does or how trustworthy it is if it is not a popular app (like Firefox or Safari).

Does any version of Windows come with that capability? I'd imagine it is an app that takes two days to write.