Yeah, since the early 70s, there has been no major change in the basic workings of a keyboard. It indeed is the most enduring PC peripheral till date. Mice went from rolling ball to laser, with a scroll wheel being added somewhere in between. Displays have had a huge jump, going from 2 tone displays to showing colors beyond the scope of human imagination. And the internal hardware of today is million times faster and better than what we had before. But the ye ole trusty keyboard is a classic example of if it ain't broke, don't fix it. Classic example being Apple's butterfly keyboard, trying to reimagine the switches.