In simple terms, a modem is a device that converts, or modulates, analog signals into digital data, or vice versa.
In terms of computer networking, a modem takes a signal provided by your Internet Service Provider, or ISP (via power lines, coaxial, etc.) and converts it into data your computer can comprehend to be the Internet. A form of a modem is also often found within a computer, which allows it to connect to the network.
A router, on the other hand, often works within the network as a postal office, metaphorically speaking. In general terms, it allows an Internet connection to be shared by multiple connections within one Local Area Network, or LAN. The router, unlike switches or hubs, checks the destination of the packet and sends it accordingly. Many modern routers also contain a firewall, which generally blocks incoming port connections. Wireless routers still function similarly, but allow computers the ability to connect to the network through wireless means.
These two devices are often used together, or are even combined into one device. The modem supplies the Internet, while the router divides it among multiple computers. The modem also works as an external mask for each of the computers on the network, and the router allows the computers to transfer data between one another.
More explanations from our contributors:
The difference between a router and a modem is that a modem connects you to the internet and a router connects you to a network. If you have 3 computer one modem and a router all computers would be able to connect to the internet because they are on a network.
a wireless router is needed when internet modem doesn't have wireless capability.
There is a difference if you are using a low quality router. For good routers you will not notice any difference. Usually there is no difference at all.
The basis difference between bridge and router mode in a Modem is to identify where does the user creditials are stored. In router mode, they are stored in the modem/router itself. In Bridge mode, creditials are stored on a pc and you would need to click on connection icon / connection to establish the connection KK@Melbourne
there has been a misunderstanding between modem and router. some people use only a modem to connect wirelessly and some use a modem and a router. The fact is there are two types. first type is a modem with built in router, second is router itself. this will clear your mind. you don't have to buy a router to go online, just a get modem with router built in
if your modem has wireless capblility then you don't need a router.
if modem has wireless capability then a router is not needed
if modem has wireless capability then a router is not needed
MAC/PC/printer to router. Router to modem. Modem to wall/internet. Wired or wireless router is optional, same principle.
If you have a router the ethernet cable connects to it. If you have another item like a PC connected to a modem you could disconnect the ethernet cable from it and plug in the PS3 until you purchase a router.
Between the cable modem and the workstations.
I'm not sure what you mean. I haven't heard about such things. Probably you meant a router with bridging. If so, then it's a router which you can you use to cover more distance then with only one. (For brindgin you will need at least 2 routers.) You might have meant changing your modem from ppp to full bridging mode. This is generally when you have a router or wireless router connected between the modem and the PC. Normally a modem handles the IP addresses and authentication when you connect to the internet. If you put a router into the situation, then there can be conflicts between the modem and the router. So what can be done is the modem is put into bridging mode which means it doesn't do any of the authentication or IP addressing etc., instead it acts like a "bridge" between the router and the internet. The router does all the work.