Only if your computer has wifi
No. Unless you are using a wired connection and unplug the computer's Ethernet cable because you do not have a router or WiFi Modem.
If the Modem was already working and for example you unplug your computer and plug in the PlayStation 3 it will work after you go to the PS3 network settings and make the connection. It will be easier on you to find a used router and plug it into the modem and then plug both the computer and PS3 into the router.
from you modem or router after you have an internet service provider
modem is device which is used to connect the Internet to computer
A modem is used to connect the computer with internet service.
it is a part of the computer which connects you to the internet
Through the modem or wifi.
If the DSL Internet connection is not automatically connecting to the computer on a cold boot, it could be a problem with the modem. Try resetting the modem while the computer is off. Unplug it for 30 seconds, then plug it back in and wait until all lights stop blinking, then boot up the computer. If this does not work, get a new modem.
It is the part of a computer which connects you to the internet. The interface between your computer and internet connection / provider
To connect to the internet you need to first buy an internet connection. You must then plug your internet cable into a modem. Finally you must have connection to the modem from your PC, most computers will automatically connect to the internet if the hardware is in place.
If you have internet service and the WiFi modem or router
Most commonly, a computer modem is a device that gives you internet from your Internet Service Provider (ISP). They usually connect to your phone, cable, or dish line to send and receive data. To get internet, you then connect your computer to the modem directly or you connect to a device called a router (share internet with multiple devices) in which connects to the modem.