I got hooked on Amiga in the 80s when I got an A500 for Christmas one year. It made an impression because my 500 had color and stereo sound at at time when my Dad's Macintosh was dog-slow and had this tiny, little monochrome screen, and the PC's we had at school ran DOS, took an hour to boot and weighed as much as a refrigerator! lol
These days I design parts for industrial (CIJ) printers, working on "integration". It involves a little bit of everything - coding, database making, wiring, PLCs.. Many of our systems still use RS232 and RS485 (2 wire serial). In other words, the rumors of the demise of the serial port are exaggerated.