Editing List of interface bit rates (section)

=== Historical ===
{| class="wikitable sortable"
|-
! Technology
! Maximum rate
!Rate excluding overhead
!Year
|-
| [[Smoke signals]]
| align="right" | '''{{nowrap|millibits/s}}'''<ref>{{cite book |last1=Jindal |first1=R. P. |title=2009 2nd International Workshop on Electron Devices and Semiconductor Technology |year=2009 |isbn=978-1-4244-3831-0 |pages=1–6 |chapter=From millibits to terabits per second and beyond - over 60 years of innovation |doi=10.1109/EDST.2009.5166093 |quote="starting with smoke signals sent by primitive civilizations at millibits/s" |s2cid=25112828}}</ref>
|
|Throughout history
|-
| align="left" |[[Morse code]] (skilled operator)
| align="right" |'''{{val|21|u=bits/s}}'''{{efn|name=morse_bps|1=Morse can transport 26 alphabetic, 10 numeric and one interword gap plaintext symbols. Transmitting 37 different symbols requires 5.21&nbsp;[[bit]]s of information (2<sup>5.21</sup>&nbsp;= 37). A skilled operator encoding the benchmark "PARIS" plus an interword gap (equal to 31.26&nbsp;bits) at 40&nbsp;wpm is operating at an equivalence of {{nowrap|20.84 bit/s}}.}}
| align="right" |4 [[characters per second]] (cps) ({{val|p=~|ul=wpm|40}}){{efn|name=morse_wpm|1=WPM, or words per minute, is the number of times the word "PARIS" is transferred per minute. Strictly speaking the code is quinary, accounting inter-element, inter-letter, and inter-word gaps, yielding 50 binary elements (bits) per one word. Counting characters, including inter-word gaps, gives six characters per word or 240 characters per minute, and finally four characters per second.}}
| align="left" |1844
|-
| align="left" |Normal human speech
| align="right" |'''{{val|39|u=bits/s}}'''<ref>{{Cite web |date=2019-09-04 |title=Human Speech May Have a Universal Transmission Rate: 39 Bits Per Second |url=https://www.science.org/content/article/human-speech-may-have-universal-transmission-rate-39-bits-second |access-date=2022-06-24 |website=science.org |language=en}}</ref>
|
|Prehistoric
|}