Dial up adsl broadband Internet access is the difference

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.

The differences between dial-up and broadband are as follows:

1. The main body is different. Dial-up Internet access is a way to connect to the Internet by dialing the access number of your ISP.

2. Broadband Internet access: It describes that the signal or electronic circuit contains or can handle a wide range of frequencies at the same time.

3. The speed is different. The dial-up Internet downlink (network-to-user) speed is 56kbps, while the upload (user-to-network) speed is only.

4. Broadband Internet access: ADSL can reach a data transmission rate of 640kbps uplink and 8Mbps downlink.

The connection mode and bandwidth are not the same, dial-up is with ** line, with hidden return width of 14kbps to 56kbps (different speeds of modem), and broadband is connected to ADSL modem with a network sail spike line, and then connected to the ** line, you must apply to the operator, the bandwidth is 1 to 3Mbps, and the bandwidth is fast.

Dialing is an analog signal, that is to say, the computer converts the digital signal into an analog signal through the modem, and then transmits it through the ** line, and then converts it into a digital signal in telecommunications, while the broadband transmission is a digital signal.

The frequency used for dial-up is the same as the frequency band of **, so when dial-up Internet access is used in the state, it is not possible to call, and the frequency of ADSL is much higher than the frequency band of **, so it can be played when accessing the Internet through broadband.