[计] 波特

[ noun ]
(computer science) a data transmission rate (bits/second) for modems
<noun.quantity>

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.
[PJC]