The modern connections symbols are:-Internet,wireless connections

PDA's can access the internet though many types of connections. These connections include WiFi, Bluetooth, USB connections to a computer connected to the internet. Some more ways a PDA can connect to the internet are through a docking station and inferred beam connections.

If your computer says there are no Internet connections, simply restart it for it to discover the available Internet connections, or check the connection cable if you are accessing Internet over Ethernet.

comcast

yes a modem is directly for internet connections and the transfer of data through the internet a router is for direct transferr from one source to another