deskthority

I think the Radio Shack TRS-80 might have also had this kind of key
https://upload.wikimedia.org/wikipedia/ ... ropped.jpg

I'm a complete newbie, so please forgive my question. But what is the term for the type of keyboard that has extremely glossy/smooth keys ... such as the keyboard in the photo on the Deskthority banner photo ... or this keyboard:
https://deskthority.net/wiki/File:KeyTronic_1983_07_001.jpg

My vague ...