What is the role of the cat and router on the computer

Cats and routers are different functions.

The cat is like a translator, the signal transmitted by the line is like English, the signal transmitted by optical fiber is like French, the signal recognized by the computer and the router is like Chinese, the computer and the router cannot recognize English and French, and must be translated into Chinese by the cat, that is, all kinds of virtual signals are converted into digital signals. If there is no cat, and the signal is transmitted through optical cables or ** lines in the network environment, you can't access the Internet at all, because the network equipment can't recognize this signal.

The function of the router is equivalent to circulating Chinese articles to everyone, if there is no router, then only the computer in a room can access the Internet, and other devices cannot be accessed. A router can distribute the network to various network devices. If there is no router in the network environment, then only one device can access the Internet, and if there is a router, the wired Internet device can access the Internet through the LAN port on the router, or the wireless network device can be connected to the router through the SSID and log in to the Internet.

As shown in the figure, there must be this WAN port on the router, also called the Internet port, which can only identify specific signals, that is, the signals converted by the cat, and distribute this signal to other network devices.

The cat is the supporting equipment of ADSL Internet access, if it is optical fiber, you can directly access the Internet without using cat optical fiber.

A router is a LAN device, simply put, it is a network line, a network cable comes in, connects to the route, and divides multiple lines, so that multiple computers can access the Internet.

The network is indispensable in modern people's lives, and the Internet often uses computer cats and routers in the process of transmission, but many friends once mixed them together, thinking that the cat is a router, in fact, the difference between the two is quite big, let's take a look at the relevant knowledge.

1. The principle is different.

The computer modem converts ether light into Internet signals, and the computer needs to dial up the Internet through the computer modem. The router is to distribute the network cable to several computers at the same time, and has the function of wireless transmission;

2. The ports are different.

Like the router, the computer cat has a standard network cable interface, which is mainly used to connect to the router or computer and other Internet equipment, but the computer cat has a special optical signal input interface, and the router does not need this interface;

3. The connection is different.

One end of the computer cat is connected to the ** cable and the computer router. The wireless router is connected to the computer at one end, and the computer can be connected to the computer with wireless wifi or network cable at the other end;

4. The settings are different.

The computer cat does not need to be set up, while the router needs to be logged in and set up, which is a bit complicated.

2. How to connect the computer modem and the router.

1. First connect the wire: open the ** home line, find the broadband splitter and the computer cat interface, and insert one end of the router cable on the LAN port of the computer cat, and the other end on the WAN port of the router. The two wires of the computer are connected to the LAN port of the router).

In the case of ADSL wideband, it is necessary to connect from the dedicated interface of the broadband splitter.

2. Set up the router: open IE input, enter the username and password, and it is admin. Go to the control page, find the web settings, enter the broadband and password. Next, enable the DHCP service. Add the server address and confirm it.

3. After the setting is completed, the IP will be automatically obtained.

Conclusion: The above introduces the difference between a router and a cat, as well as the relevant knowledge of how to connect a cat and a router, hoping to give you some help. In our real life, the Internet can not only make us addicted to games, but also take us to appreciate the latest changes in society, isn't it great?

In our daily life, we are generally inseparable from the network, if you want to surf the Internet normally, you generally need to connect the router and the cat together, but many people don't know much about the role of the cat and the router, so what is the role of the router and the cat? Let's take a look at this article.

What is the role of the router and the cat

1. The router is generally used for the redistribution of network signals, playing a role in distribution, generally as long as a network cable is used, multiple computers can achieve the purpose of surfing the Internet at the same time, the top of the router is generally connected with the cat, and the bottom is generally connected with the computer.

2. Cat, also known as modem, is generally used to transfer network signals of different media between networks, that is, to transfer ADSL, optical fiber and other network signals into standard computer network signals, playing a role in transferring to the Internet.

3. The appearance and port of the cat are very different from the appearance and port of the router, there are generally two kinds of routers on the market, namely wired routers and wireless routers, and the commonly used cats on the market generally have two ports, one is connected with the ** line, and the other is connected with the RJ-45 port network cable, but recently there is a new cat with router function on the market, that is, the router and the cat's function are integrated.

4. If the user has broadband at home, then there must be a cat, if there are multiple computers at home that need to access the Internet, a router must be installed, if the number of computers is large, and has exceeded the number of interfaces of the router, then it is necessary to use a switch to expand the number of interfaces for computer networking.

The above is the relevant content about what the role of the router and the cat is, I hope it can be helpful to everyone. If you have broadband at home, you must have a cat, and if you have multiple computers in your home that need to access the Internet, you must install a router and connect it in the right way.

Router: The role of the router is to enable several computers to access the Internet at the same time with a network cable, and play a role in assigning IP. Connect the cat on the top and the computer on the bottom.

"Routing" refers to the behavior and action of transmitting data from one place to another, and the router is the machine that performs this behavior and action, and its English name is router. The basic functions of the router are as follows:

Network interconnection: The router supports a variety of LAN and WAN interfaces, mainly used to interconnect LAN and WAN to achieve communication between different networks.

Data processing: Provides functions including packet filtering, packing**, priority, multiplexing, encryption, compression, and firewall.

Network management: The router provides functions such as router configuration management, performance management, fault tolerance management, and traffic control.

Cat: The cat barks at the modem, and the computer can dial up the Internet through it. Connect the ** cable at the top and the router at the bottom.

It can translate the computer's digital signals into pulse signals that can be transmitted along ordinary ** lines, and these pulse signals can be received by another modem at the other end of the line and translated into a language that the computer can understand.

The information in the computer is composed of digital signals composed of "0" and "1", while the transmission on the ** line can only be analog electrical signals. Therefore, when two computers want to transmit data through the first line, a device is needed to be responsible for the conversion of digital to analog. This digital-to-analog converter is the modem.