How do I use multiple computers off my cable modem?

Question

How do I use multiple computers off my cable modem?

Answer 1

Get a Router / Gateway, plug the modem into the Internet slot, and the computers into the ports numbered 1 - x.

Answer 2

just use a wireless router to connect all computers to the one modem

Answer 3

This requires a router.

Connect the modem's Internet feed to the router WAN (sometimes called Internet) port.  Connect the router's LAN port to a network switch.  Connect all pcs to the network switch.

Some routers are switch routers providing 4 LAN ports instead of one; if you have no more than 4 LAN devices and you purchase one of these you will not need a switch.

If you wish wireless, get a switch / router with wireless ability.  

The router must be configured as the manual will tell you.  If you buy wireless be sure to configure the router with wired connections AND be sure to institute all the wireless security or people will hack in and hog all your capacity.