Question

How can computer connect to internet?

Answer 1

Bisa menggunakan modem atau speedy atau wifi

Answer 2

Computer can connect to internet by using wi-fi in a certain computer. 

But, If you want to know deeply how a computer connects to internet, I'll tell you.

In every computer, there's a hardware (inside a computer) called LAN or Local Area Network. 

This LAN work as a connector to internet. Without LAN, a computer can't connect to internet.