LAN Hardware.

LAN Hardware.

1. router

   • why do we need it
     • You need an inexpensive device called a router This is basically a box that goes between your DSL or cable modem and all of your Internet devices computers HDTV and so on. The router shares the Internet signal between the multiple devices Your ISP provides you with one, allowing one device to access the Internet.

2. switch

   • why do we need it
     • Each device connected to the switch is automatically connected to everything else connected to the switch. So if you put up your cable modem to a router, then connect the router to a switch, you can connect other devices to the Internet simply by plugging them into the switch.

3. server.

   • why do we need it
     • A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server.

4. ·

   • why do we need it