Thank Geek It's Friday: Calculator Color Palettes

Color inspiration can come from anywhere, right? That's why I thought these calculator palettes were so cool. I never really thought of how colors might be used on calculators to make them seem more appealing or superior to other calculators. But when the colors are taken off the surface and put together, they really are very modern, techy, and for the most part, masculine. Here are some images from the collection I found on tumblr (where you can find even more). However, the last image (the Texas Instruments TI-30 SLR) is my own calculator from 1987. I was so excited my senior year in high school to finally be in math classes that required such a "sophisticated" instrument. Do they still use calculators in schools?