I ve heard that you need to buy cats when you go online, but you don t use them in schools and Int

In fact, this question is needless to say at first glance!

The school must have used fiber optics! At least one school has thousands of people online at the same time! Fiber is the fastest, what else can you use without fiber!

Internet cafes look at the situation, generally regular large Internet cafes use optical fiber, like some Internet cafes only have more than 20 machines, must use that adsl, model or forget I heard that the performance is not as good as adsl! Obsolete products. Didn't do much research.

Let's take a real-life example! When I was on QQ, most of the displays displayed by many friends were adsl, of course, there were others, but it showed a common phenomenon that adsl was a lot on the Internet! I have used ADSL for China Telecom and Tietong Broadband, and my friend of Netcom also uses ADSL, and there are very few models.

If you have to buy a cat! Nowadays it is common to use adsl!Internet cafes and schools are all super-large-scale Internet access, and the network speed should be good, so the fastest access --- fiber is used!

Optical fiber is commonly used. Or with high-bandwidth telecom and netcom broadband! As for the model, I have never heard of it!

Generally, schools use the special line of the education network. Direct access via fiber optics or other media, and then shunt to individual dormitories. Therefore, there is no need to use a "cat" (modem aka modem).

The most affordable option for families to access the Internet is to access the Internet through the ** line ADSL. In order to improve the efficiency of data transmission and reduce the bit error rate, a modem modem is used for digital-to-analog, analog-to-digital conversion. Surf the Internet.

ADSL is a non-peer-to-peer data communication network.

If you live where you have broadband, don't buy a "cat" when you have access to the Internet. Moreover, today's computers generally come with the necessary hardware to access the Internet, so don't buy a "cat" alone to access the network.

Buying a "cat" is required to go online, and the old-fashioned computer situation is only needed in the old-fashioned computer situation.

Cat's "modem, aka modem, can be connected with ** wire, which converts analog signals and digital signals. Nowadays, most computers use optical fiber to access the Internet, which is faster and does not need to convert information. I don't need it.

Now the computers bought outside don't have this installed.

The school is connected to the Internet through a local area network connection** server.

Outside through ADSL or dial-up Internet access, the cat (modem) is required to convert the ** signal into a data signal on the Internet.

Schools and Internet cafes are connected by fibre optics. Not the same.

It's possible that the cat is already installed in the computer.

To put it simply: the cat is narrowband (** line dial-up Internet).

The network card is broadband (leased line or ADSL dial-up Internet access).

Dear users, hello:

Based on your description, you'll first need to modify the notebook's local connection properties to get them automatically:

Then plug the network cable into the laptop, re-connect the network, create a new broadband dial-up account, and enter the broadband user name and password.

When using wired Internet access, disable the wireless network card of the laptop.

Change the IP address of the physical NIC to automatic acquisition, and then operate it like a desktop.

Restart the hair and notebook, and your notebook, please change the IP to dynamic acquisition. Also are you sure your laptop is dialed?