connected to a central point with their own individual cables or wireless connections. You will often find that central spot inhabited by a device like a hub, a switch, or an access point.it requires more physical media, because each device has its own dedicated cable connected to the hub or switch.each computer or network segment is connected to the central device individually.If the cable fails, it will only bring down the machine or network segment related to the point of failureIt$$s a lot more scalable, and all you have to do if you want to add to it is run a new cable and connect it to the machine at the core of the star.New computers can be added or moved easily and quickly.