The advantage is that if you already have cable tv can be connected to the Internet by Cable Modem device is added, it can connect to.The disadvantage is that if a cable is very nearby. May cause slower traffic.
The advantage is that if you already have cable TV. Internet connection has increased Cable Modem device that can connect to the downside. If the cable is in very close proximity. The traffic may slow down.
The advantage is that if the cable TV. Can connect to the Internet by adding accessories Cable Modem can connect disadvantages. If the user is a cable in the vicinity. May cause traffic slows down.