Search engines, such as Google and DuckDuckGo, <span>are the most popular method used by visitors to find web sites.</span>
A driver. A driver is basicly and application or component that helps communicate between you computer and a device(a mouse, keyboard, printer etc.) You may have know when you get a new mouse and connect it up, Windows always tries to find a driver and download it.
1. ms-dos 1981
2. windows 2.0 1987
3. windows xp 2001
4. mac os 2001
5. windows 7 2009
I would think Microsoft Word would be the answer. It does everything a typewriter can.