blocks|key|551366|text|根据这个答案：波特率和比特率有什么区别？|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|551367|看起来这是因为早期的模拟电话，bps+=波特率。IE1符号=1位。这将导致这样的假设，即UI设计人员在某一时刻只是做了一些假设，并根据一些预期将COM端口用于插入调制解调器的基础上混合了这些术语。|551368|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/20534417/what-is-the-difference-between-baud-rate-and-bit-rate^0|7|D|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

According to this answer:
 <a href="https://stackoverflow.com/questions/20534417/what-is-the-difference-between-baud-rate-and-bit-rate">What is the difference between baud rate and bit rate?</a>

It looks like it's due to the fact that with early analog phones, bps = baud rate. ie 1 symbol = 1 bit. That would lead to the assumption that a UI designer at some point simply made some assumptions and mixed the terms based on some expectation that COM ports were going to be used to plug modems in.

blocks|key|303425|text|尽管标记为“位每秒”，但该对话框实际上以符号每秒的速度显示波特率。(符号包括数据位，但也包括启动、停止和奇偶校验。对于串行端口，通常也称为“位”)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|303426|除了分组符号外，造成比特率和波特率差异的另一个原因是多电平信令--但这不适用于PC串行端口，因为它们只使用二进制信令，因此一个数据符号=一位。不要被许多串连调制解调器使用更大信号星座的事实所迷惑，这是指调制解调器和计算机之间的连接，而不是两个调制解调器之间的连接。|303427|问题中的图像中所显示的选择将导致9600波特，但仅为每秒960字节。(1字节=8位，但由于启动和停止间隔，串行端口每字节发送10个符号)|303428|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Despite being marked "bits per second", that dialog actually displays baud as a rate in symbols per second. (Symbols include data bits but also start, stop, and parity. For serial ports these are often also called "bits".)

Besides framing symbols, the other cause for a difference between bit rate and baud would be multilevel signalling -- however this doesn't apply to PC serial ports since they only use binary signalling, therefore one data symbol = one bit. Don't be confused by the fact that many serial-attached modems use a larger signal constellation, this refers to the link between the modem and computer, not between two modems.

The selections shown in the image in the question will result in 9600 baud, but only 960 bytes per second. (1 byte = 8 bits but due to start and stop intervals, the serial port sends 10 symbols per byte)

blocks|key|551410|text|调制解调器不使用严格的数字传输方法，而是使用FSK，它允许波特率(您的“符号”)超过一位(二进制数据)。电话线的高频限值约为3300赫兹。如果这是截止，您的调制解调器不能发送超过2400波特(比特率)。通过在一个周期内移动信号，它可以在1波特内传输超过1位的信号。加上4班，你就把比特率从2400提高到9600。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|551411|至少这是我20年前的记忆。|551412|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Modems don't use a strict digital transmission method, but instead use FSK, which allows for a baud (your "symbol") o be more than one bit (binary data). A phone line has a high frequency limit of about 3300 Hz. If that was the cutoff, your modem couldn't send more than 2400 baud (bit rate). By shifting the signal within one cycle, it's able to transmit more than 1 bit in 1 baud. Add 4 shifts and you up the bit rate from 2400 to 9600.

At least that's what I remember from some 20 years ago.

If you search around the internet, you can easily find websites, google images, as well as many (YouTube) videos that explain the various properties of COM/serial/RS232 ports. As far as i'm concerned in most of these they state that in the COM port dialogue box the baud rate can be seen (and not just in Windows OS), such as <a href="http://chirp.danplanet.com/projects/chirp/wiki/FAQ_Adjusting_The_Serial_Port_Settings_In_Windows" rel="nofollow noreferrer">here</a>, <a href="https://developer.mbed.org/handbook/Terminals" rel="nofollow noreferrer">here</a> and even on Sparkfun <a href="https://learn.sparkfun.com/tutorials/terminal-basics/tips-and-tricks" rel="nofollow noreferrer">here</a>. And this is clearly false, since it explicitly states the bit rate. Here's an image from my Windows 8.1 PC as well:

<a href="https://i.stack.imgur.com/aKgyf.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aKgyf.jpg" alt="enter image description here"></a>

And we know that bit rate isn't the same as baud rate. Also numerous times i've heard people e.g. on youtube videos talking about messing around with the "baud-rate" on windows pc. Now i'm confused. What is going on here. It clearly states the bit rate, isn't that right? Am i missing something?

A COM Port on a Windows PC indicates the bit rate, or the Baud rate?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如果你在互联网上搜索，你可以很容易地找到网站，谷歌图片，以及许多(YouTube)视频解释COM/串行/ as 232端口的各种属性。就我所关心的大多数情况而言，他们说在COM端口对话框中可以看到波特率(而不仅仅是在Windows中)，比如、，甚至在上。这显然是错误的，因为它显式地声明了比特率。这里还有我的Window...

问Windows PC上的COM端口表示比特率，还是波特率？
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问Windows PC上的COM端口表示比特率，还是波特率？EN