My very first computer purchased at age 14. The Atari 400. This was one of the most powerful Home PCs on the market at the time with a whopping 16K of memory. The keyboard was often referred to as "peanut butter proof" and was protected by a few exemplary US patents: US4375585 (https://goo.gl/32zL23) and USD262702 (https://goo.gl/9guPmx)
Truly innovative for its time. (And, I still own the beast.)
