What is the difference between dial up Internet access and ADSL, and broadband? What s the differenc

1. Different ways to access the Internet.

1. Dial-up Internet access: Internet access through external or built-in modem and a ** line.

2. ADSL Internet access: a way to access the Internet through asymmetric digital user lines.

Second, the principle is different.

1. Dial-up Internet access: Apply for your own from the local ISP** provider, or buy a network card, have your own username and password, and then connect to the Internet by dialing the ISP's access number.

2. ADSL Internet access: use digital coding technology to obtain the maximum data transmission capacity from the existing copper ** line, and at the same time do not interfere with the conventional voice service on the same line.

Third, the characteristics are different.

1. Dial-up Internet access: Through PPPOE technology and broadband modem, you can realize personal authentication access to high-speed broadband network, and create a virtual dial-up connection for each user, so that you can connect to the Internet at high speed.

2. ADSL Internet access: data signals and audio signals are modulated in their respective frequency bands without interfering with each other by the principle of frequency division multiplexing, and you can dial or receive ** while surfing the Internet, which avoids the trouble of not being able to use ** when dialing up the Internet.

First, the reference is different.

1. Dial-up Internet access: refers to the steps and operation content of joining the Internet through local ** dial-up, from dialing 163xx (169xx) to being able to "wander" on the Internet.

2. Dedicated line networking: The types of private lines involved include ADSL private line, DDN private line, FR private line, and ATM private line.

3. Broadband Internet access: It can meet the bandwidth required for transmission on the network that people can feel.

Second, the speed is different.

1. Dial-up Internet access: the speed can only reach 56kb s.

2. Leased line Internet access: The rate range is between 64Kbps and 1Gbps.

3. Broadband Internet access: the rate can reach 10ms or even higher.

Third, the way is different.

1. Dial-up Internet access: As long as the user has a personal computer, an external or built-in modem and a ** line, and then apply for their own from the local ISP ** provider, or buy a network card, have their own username and password, and then connect to the Internet by dialing the ISP access number.

2. Dedicated line Internet access: When the data communication bandwidth required by the user is between 64Kbps and 2Mbps, and the user needs to have a fixed exclusive IP address, the user can choose this access method to establish his own mail server, web server and other servers, and can realize the company's internal VPN business through the Internet.

3. Broadband Internet access: It describes a wide range of frequencies that a signal or electronic circuit contains or can be processed at the same time. Broadband is a relative way of description, and the larger the frequency range, that is, the higher the bandwidth, the more data can be sent.

The biggest difference is the speed of Internet access, compared with the traditional dial-up Internet access technology, the biggest advantage of broadband access technology is that the access bandwidth is greatly expanded, generally 30 times that of ordinary dial-up Internet access.

In fact, there is no very strict definition, generally based on the current upper limit of dial-up Internet speed of 56kbps as the boundary, the access of 56kbps and below is called "narrowband", and the access mode above is classified as "broadband". Broadband also refers to the access technology that can use different channels for multiple transmissions on the same transmission medium, and the transmission speed is more than bits and seconds.

At present, the broadband access solutions that are open to the public include ADSL technology based on the current ** line, cable modem technology based on the existing cable TV line, FTTB broadband technology based on the relaying of optical fiber, broadband satellite technology, local multipoint distribution system LMDS technology, etc.

At this stage, ADSL and Cablemodem are the most feasible, as they do not require rewiring and are relatively inexpensive to access and use. Broadband access is already similar to Ethernet access. In terms of stability alone, it is much stronger than ADSL, which is an asymmetric digital subscriber line, and although the access is a public dynamic IP, it is still limited by the operator's public network egress speed.

ADSL is a dial-up technology, broadband is a network connection technology, and fiber optics is a hardware network medium.

The most widely used medium for broadband networks is ** line and optical fiber, broadband is corresponding to the "narrowband", ADSL is a dial-up technology.

The stability of optical fiber networking is better than that of traditional ** lines, and the bandwidth that can be provided within the same line is larger, just like an eight-lane highway and a four-lane highway. Many people think that optical fiber is faster than ** line, which is not entirely true. Theoretically, it is just as fast, but because the ** line stability is low, the frequent packet loss and repeated connection are rock-forming Bijian network delay, so it will be a little slower.

In terms of bandwidth capacity, the maximum single line of ** line technology can only reach 100Mbps, while optical fiber can exceed 1000Mbps, and even reach 10Gbps.

In some cases, lines with a bandwidth of less than 4Mbps are referred to as narrowband, while in communication technology, lines with a bandwidth of less than 64kbits are called narrowband.

ADSL dialing method is currently the most widely used broadband dialing method of thick pants, there is a dialing method that has been eliminated called ISDN, you can take a look at the details. Both are just different in the way they dial.

Brand model: Huawei MateBook D15

System: Windows 11

Dial-up Internet access is a way to connect to the Internet by dialing the access number of your ISP. Broadband Internet access is the description of a signal or electronic circuit that contains or is capable of simultaneously handling a wide range of frequencies. Dial-up is with ** line, bandwidth 14kbps-56kbps (different speeds of modem), and broadband is connected to adslmodem with a network cable, and then connected to ** line, you must apply to the operator, bandwidth 1-3mbps, bandwidth is fast.

Dial-up Internet access: convert the digital signal of the computer into an analog signal that can be transmitted according to the first line, and transmit it to another computer or server through the network; The received analog signal is then demodulated into a digital signal so that the computer can recognize it. Broadband Internet access:

The use of frequency division technology separates the low-frequency signal and the high-frequency signal transmitted by the ordinary ** line. The data signal does not pass through the switch equipment and goes directly to the Internet.