"any technological innovations ... in 80's and 90's"

What? Ok, first, do you think they've ever innovated anything? During the 2000's? What exactly?

Wasn't Windows NT, for example, innovative? The kernel is still powering the Windows operating system.

Internet Explorer was a hugely successful browser dominating the market.

Innovation isn't only creating something from scratch. One can also create innovative products by acquiring the basis for that and developing until it is successful.

Of course they're approach has been to "repeat until success". And they quite often get there.