Here's a good blog post on how that has changed over the years: http://www.512pixels.net/blog/2014/01/apple-boilerplate

And here's Microsoft's version:

"Founded in 1975, Microsoft (Nasdaq “MSFT”) is the worldwide leader in software, services and solutions that help people and businesses realize their full potential."

No one is going to be humble in their own press releases.

Yes, but their PR or brand message or whatever you want to call it has always been fairly extreme. I mean, just look at their 1984 super bowl ad... or really, any ad they've put out in the last decade or so (http://www.apple.com/designed-by-apple/)

Looks like they've been using that line in press releases for years: https://www.google.com/search?q=%22best+personal+computers+i...