What is the difference between WAN,LAN,WI-FI and WLAN?

Answer 1

You can Google it or check a computer text book. Won't be difficult to find.

Answer 2

This is not programming question. Your googlesearch is crashed?

Answer 3

Here is your result but next time try to find self on these type of questions. You can easily get on Google.

https://blog.udemy.com/lan-wan-man/

Answer 4

Please, Google it yourself!