baud
Symbols per second
Baud is a unit measuring data transmission speed—specifically, the number of signal changes per second in a communication channel.
Named after telegraph pioneer Émile Baudot, baud was once synonymous with bits per second, though modern systems often encode multiple bits per signal change.
The old modem connected at 2400 baud.
The term survives mainly in discussions of legacy hardware.
Data transfer speed
- throughputProcessing rate over time
- bandwidthData transmission capacity
- kilobaudData transmission rate measure
- bpsData transfer speed
Electrical message system
- teleprinterElectromechanical text transmission device
- telexWired text transmission system
- teletypeElectric text transmitter
- TTYText-based telephone terminal
Phone-line internet connection
- modemDigital-to-analog signal converter
- handshakingMutual greeting grip
- full-duplexConcurrent bidirectional transmission
- half-duplexOne direction at a time
Conveying information nonverbally
- encodingConverting data to format
- modulationVarying signals to transmit
- demodulationRecovering signal from carrier
- amplitudeMaximum oscillation displacement
PSK · waveform · sampling · synchronization
Not happening together
- synchronousOccurring at same moment
- parityState of being equal
- terminalAt the endpoint
- consoleComfort in distress
bitrate
Data transfer speed
- throughputProcessing rate over time
- bandwidthData transmission capacity
- kilobaudData transmission rate measure
telegraph
Electrical message system
- teleprinterElectromechanical text transmission device
- telexWired text transmission system
- teletypeElectric text transmitter
dial-up
Phone-line internet connection
- modemDigital-to-analog signal converter
- handshakingMutual greeting grip
- full-duplexConcurrent bidirectional transmission
half-duplex · 56k · BBS
signaling
Conveying information nonverbally
- encodingConverting data to format
- modulationVarying signals to transmit
- demodulationRecovering signal from carrier
amplitude · PSK · waveform · sampling · synchronization
asynchronous
Not happening together
- synchronousOccurring at same moment
- parityState of being equal
- terminalAt the endpoint
- unitsunit, angstrom, yard, meter, base units
- computing unitsbit, byte, kilobyte, megabyte, gigabyte
- networkingrouter, routers, LAN, WAN, switches
- Data Unitsbit, byte, kilobyte, megabyte, gigabyte
- Bandwidthbandwidth limit, bit rate, bitrate, bits per second, bps
- computer metricsbyte, bit depth, kilobyte, megabyte, gigabyte
baudbit rate
Data transfer speed
bits per second · bps · throughput · bandwidth · latency