Learning Electronics Encompasses to?

When you are learning about electronics, I don't mean its basic electronics surely, you are about to head over to these subjects: 

1. IoT
2. Electronics Manufacturing
3. 5G/Wireless
4. Automotive/Energy
5. Data Center Infrastructure
6. Aerospace/Defense
7. Education
8. Service Provider/Network Operator
9. Enterprise IT

From point 1 all the way down to point 8, perhaps you can easily get what they are. However, point 9 might be new for you. Then this video might help you understand.

https://www.youtube.com/watch?v=gSG0kemksuU