Hub is used to connect the computers with one another without using internet. They are basically used in LAN. Hubs are used to connect less number of computers, in order to connect more computers you can use switches. To connect them with the internet, you can add routers to it. If you want to know the process to connect computers with each other then you have to follow some steps and you can find these steps on this website.
Have fun and enjoy blurting :)
Have fun and enjoy blurting :)