Learned Microsoft Basic in 1985 on a Commodore 64, 6502/6510 assembly soon after, wrote and compiled C on the Commodore, 16 bit Intel assembly and C++ on IBM clones to present day. I've done 'T' square drawing board mechanical/architectural drawing since I was a kid and have used Autocad for close to 30 years. Otherwise I've done residential and commercial, old and new construction electrical work since I was around 15 in 1970.