Can a PC connect to WiFi?

Yes, PC can connect to WIFI. For connecting your PC with WIFI you will need a small device called: USB to wifi adapter.

Usually, those adapters cost from $8 to $80 you will find that adapter in your local computer store or you can order it in the internet shop.

When you will buy that adapter just plugin that adapter to your free USB port and if you have Windows 10 all drivers will be automatically installed on your PC. After inserting the WIFI adapter to your PC, you will see all WIFI networks in your area.