In the field of electronics, bandwidth is used to describe the width of a frequency band. But in digital transmission, bandwidth is also commonly used to measure the ability to transmit data. It is used to indicate the size of the data capacity transmitted per unit of time (generally measured in "seconds"), indicating the ability to throughput data. It also means that a wider bandwidth can transfer more data per second. This is why we also refer to bandwidth as "data rate".
When you are surfing the Internet, you always want to know how fast your Internet speed is, which is actually the Internet bandwidth.
The unit of bandwidth is generally expressed in two ways:
The first is B/s, KB/s, or MB/s, which indicates the amount of data (bytes, kilobytes, and megabytes) transmitted per unit of time (second);
The second is bps, Kbps, or Mbps, which indicates the amount of data transmitted per unit of time (second);
The second is bps, Kbps, or Mbps, which indicates the amount of data transmitted per unit of time (second);
This is the unit of data transfer rate. (seconds) of data transmitted in bits, kilobits, megabits.
The conversion formulas for these two types of bandwidth are:
1 B/s=8 bps (b/s), 1 KB/s=8 Kbps (Kb/s), 1 MB/s=8 Mbps (Mb/s).
II. What is broadbandBroadband does not have a very strict definition. From a general point of view, it is understood that it is able to meet the people's sense of the various media can be felt on the network transmission of the bandwidth needed, so it is also a dynamic, development concept. Refers to the same transmission medium, the use of special technology or equipment, you can use different channels for multiple (parallel) transmission, and the rate of 256Kbps or more, as to how many rates above the rate is considered broadband, there is no international standard, some people say that more than 56K is broadband, some people say that more than 1Mbps is considered broadband, here we are in accordance with the convention and the network multimedia video The amount of data to consider 256K. Therefore, compared with the traditional Internet access technology, broadband access technology, the biggest advantage is that its bandwidth rate is far more than 56Kbps dial-up.
Broadband is a business, bandwidth is the transmission speed.
Third, what is the speed of the InternetInternet speed is generally refers to the computer or cell phone Internet access, uploading and downloading data, the length of time used to request and return data.
The broadband speed mentioned in the operator's product introduction refers to the physical interface rate between the user's Modem and the telecom's broadband access equipment (DSLAM). The technical characteristics of ADSL dictate that the upstream and downstream rates are different.
The Internet speeds mentioned in the telecom services are 1M, 2M, 3M, 4M, etc. They are calculated in terms of data communication units. So when the computer software shows a download speed of 200KB, the actual line connection rate is not less than 1.6Mbit (1600Kbit).
Taking into account the various losses in data transmission and the performance of computer terminals, it is impossible to reach the theoretical value of Internet speed.
The actual reference values of Internet speed are as follows:
Normal download rate of 1M bandwidth is between 75-125KBs
Normal download rate of 2M bandwidth is between 150-250KBs
Normal download rate of 3M bandwidth is between 225-375KBs
Normal download rate of 4M bandwidth is between 300-500KBs and so on. 500KBs, and so on.
Four, what is the flow rateThe so-called flow rate is the amount of fluid flowing through the closed pipe or nullah effective cross-section per unit of time, also known as instantaneous flow rate.
Often said website traffic (traffic) refers to the amount of visits to the site, is used to describe the number of users accessing a website and the number of web pages viewed by the user and other indicators, commonly used statistical indicators, including the number of independent users of the site, the number of total users (including repeat visitors), the number of web pages viewed, the number of page views for each user, the average user's stay in the site.
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