Definition: One who ventures into unknown or unclaimed territory to settle.
Apple does not really fit the bill when it comes to MP3 players, but you could say they did when it came to the tablets since they pretty much created the category.
In fact it was apparently Microsoft that were the first:
http://www.dailymail.co.uk/news/article-2053242/Steve-Jobs-i...
https://wikivisually.com/wiki/PenPoint_OS
https://www.youtube.com/watch?v=AmFUJ-pxG3E
Microsoft started down the path towards Surface by adding rudimentary pen support in Windows 3.1 as a response to what these guys were doing.