I am a retired Network Specialist who has a worked with lower end processor based systems. Started with single bit processor terminal devices the size of a desk, through 8080's/Z80 in the late '70's, PC's in the 80's/90's, 8051 derivatives in the noughties, Raspberry Pi's in the 10's and now Arduino and espressif devices. Seen transition from proprietary OS's to CP/M to Windows 3.1 onwards to Windows 7 but now using Linux as preferred OS. Now in my mid 70's, I try to keep up with technology and network security.