What is the relationship between bandwidth and Internet speed?

The relationship between broadband and network speed is: "1Mbps=1024Kbps=1024/8KBps=128KB/s", that is, the network speed of "1M" broadband will not exceed "128KB/s"; it is generally considered that bandwidth The larger the network speed, the faster it will be. What is correct is that bandwidth is not directly related to network speed. In actual use, network speed may have a certain impact on the router's transmission rate and other factors due to server problems on the website itself.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

What is the relationship between bandwidth and network speed

The relationship between bandwidth and network speed is: 1Mbps=1024Kbps=1024/8KBps=128KB/s.

First of all, the complete unit of the 200M broadband optical fiber mentioned by the operator is 200Mbps, while the download speed unit mentioned in our computers is: MB. Therefore, 200M broadband download speed does not mean that the download speed is 200Mb/s.

That is to say, the download speed of 1M broadband will not exceed 128KB/s, which means that in theory, 128K content can be downloaded in 1 second. In fact, with 1M broadband, the download speed of 100k/s is normal. After all, The theoretical value may not be achieved. The download speed of 200M broadband is theoretically: 128KB/s x 200 = 25600 KB/s = 25.6MB/s.

What is the difference between bandwidth and broadband?

Bandwidth is a quantifier, which refers to the size of the network speed. For example, 1Mbps means one megabit per second, and this value refers to the bandwidth.

Broadband is a noun, indicating that the transmission rate of the network is very high. Broadband standards vary. Initially, bandwidths above 128kbps were considered broadband, while bandwidths below 128kbps were considered narrowband.

But now domestic operators generally provide broadband services with at least 512kbps bandwidth. In other words, bandwidth is a specific value, while broadband is a transmission standard (service) that meets a certain bandwidth value.

That is: broadband is a business, and bandwidth is the transmission speed.

Broadband: In digital communications, it usually refers to the bandwidth of signals above 64kbit/s.

Narrowband: In digital communications, it usually refers to the bandwidth of signals below 64kbit/s.

1. Broadband

Usually people will ask whether your home can access the Internet? In fact, this means whether your home has broadband. In other words, it is a noun. The word broadband comes first, and then you can say what your bandwidth is. Broadband has no direct relationship with the speed of Internet access.

2. Bandwidth

When we want to apply for broadband, we need to register with some service providers. At this time, depending on the package, you may have 10Mb/s, 20Mb/s, etc. You can use the computer byte conversion ratio to calculate your own bandwidth

For example:

1B=8b //1 byte = 8 bits 1KB = 1024B1MB =1024KB1GB=1024MB

The bandwidth we applied for is 10Mb/s. The b in this unit is lowercase, and the 1B (byte) we just mentioned = 8b (bit), which is exactly 8 times the relationship. , that is, the download speed: 10Mb / 8 = 1.25MB

Some people will ask, why should we divide by 8?

In computers, the download speed is measured in bytes (B) units, while the provider says it is in bits (b).

For example: When downloading a software on the Internet, the unit will be B (byte). Another example is that you open a web page. This web page may contain pictures, text, videos, etc. The essence of these contents is Speaking of which, it is downloaded to your computer and then you can see it.

We can calculate our own download speed by bandwidth:

Calculation method: Bandwidth size / 8

More related knowledge, Please visit the FAQ column!

The above is the detailed content of What is the relationship between bandwidth and Internet speed?. For more information, please follow other related articles on the PHP Chinese website!