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The Collaborative International Dictionary

baud \baud\ (b[add]d or b[^o]d), n. [Named after J. M. E. Baudot, a French inventor, died 1903.] (Computers, telecommunications) A unit of transmission speed for information conveyed over a digital communications channel, usually taken as equal to the number of bits of information transmitted per second. The speed in bauds indicates the number of signalling events per second; however, since it is necessary in most cases to transmit control information along with the data, the data signalling rate may be smaller than the baud rate.

Douglas Harper's Etymology Dictionary

1932, originally a unit of speed in telegraphy, coined in French in 1929 in honor of French inventor and engineer Jean-Maurice-Émile Baudot (1845-1903), who designed a telegraph printing system.


n. 1 (context computing telecommunications English) A rate defined as the number of signalling events per second in a data transmission. 2 (context computing informal English) Synonym for bps (bits per second), regardless of how many signalling events are necessary to signal each bit.


n. (computer science) a data transmission rate (bits/second) for modems [syn: baud rate]


In telecommunication and electronics, baud (, unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second or pulses per second. It is the number of distinct symbol changes (signaling events) made to the transmission medium per second in a digitally modulated signal or a line code.

Digital data modem manufacturers commonly define the baud as the modulation rate of data transmission and express it as bits per second.

Baud is related to gross bit rate expressed as bits per second.

Baud (disambiguation)

Baud may refer to:

  • Baud, symbols per second or pulses per second


  • Alf Baud (1892–1986), Australian rules footballer
  • Auguste Baud-Bovy (1848–1949), Swiss painter
  • Frédéric Baud (born 1975), French Nordic combined skier who competed from 1993 to 2004
  • Jean Chrétien Baud (1789–1859), Governor-General of the Dutch East Indies from 1833 until 1836
  • Michel Baud, French Egyptologist, head of the Nubian Sudan section in the Department of Egyptian Antiquities of the Louvre Museum


  • Baud, Morbihan, commune in the Morbihan département in Brittany in north-western France

Usage examples of "baud".

Hank remembered hearing Grandpa tell someone that the modem was of an experimental type, with one fantastic high baud rate, though it looked like nothing more than the standard audio unit that most modems were.

It had a large, primitive locking mechanism that was rusted, as were the iron bauds that cut across the discolored wood.

At its baud rate, it bore the work and discoveries of half a planetary day across in less than a minute.

It hasn't got the bandwidth or the baud rate, poor thing, much less the storage capacity.

He whistled something improbably convoluted in modemspeak, at a baud rate I couldn't follow.

Data could not draw information from it at normal speed, but had to wait for it to feed at its own baud rate.