digital signals
Ones and zeros
Digital signals represent information as discrete values, typically sequences of ones and zeros, rather than continuous variations.
Unlike analog signals that fluctuate smoothly across a range, digital signals switch between distinct states: The audio was converted to a digital signal for transmission.
This discreteness makes digital signals resistant to degradation—they can be copied, transmitted, and processed without the gradual quality loss that affects analog systems.
Small amount or portion
Forcing into smaller space
- encryptionConverting data into code
- codecData compression algorithm
- modulationVarying signals to transmit
- demodulationRecovering signal from carrier
sampling · quantization · ASCII · MPEG · JPEG · serialization · parity · checksum
Data transmission capacity
- latencyDelay in system response
- packetSmall sealed container
- protocolPrescribed conduct rules
- TCP/IPInternet's core protocol suite
ethernet · Wi-Fi · modem · router · receiver · transmitter · broadband · throughput
Signal manipulation technology
- filterPorous separation device
- FFTRapid spectral decomposition algorithm
- spectrumContinuous range of values
- waveformGraphed oscillation pattern
amplitude · frequency · harmonic · oscillation · transform · convolution · decimation · interpolation
bit
Small amount or portion
high · low · on · off · true · false · boolean · logic · state · transition
compression
Forcing into smaller space
- encryptionConverting data into code
- codecData compression algorithm
- modulationVarying signals to transmit
demodulation · sampling · quantization · ASCII · MPEG · JPEG · serialization · parity · checksum · hashing
bandwidth
Data transmission capacity
TCP/IP · ethernet · Wi-Fi · modem · router · receiver · transmitter · broadband · throughput · noise
DSP
Signal manipulation technology
- filterPorous separation device
- FFTRapid spectral decomposition algorithm
- spectrumContinuous range of values
waveform · amplitude · frequency · harmonic · oscillation · transform · convolution · decimation · interpolation · aliasing
- telecommunicationscell phone, cellphone, cellular network, telephone calls, antennas
- submarine cablesundersea cables, transatlantic cables, undersea cable, transatlantic cable, telegraph cable
- Electromagnetic Wavesvisible light, radio waves, infrared light, ultraviolet light, gamma rays
- signalssignaling, sign, waved, nodded, gestured
- flight controlsailerons, elevators, yoke, rudder, aileron
- TCP/IPTCP, UDP, segment, handshaking, ACK
digital signalsanalog signals
Smoothly varying electrical information
sine waves · analog video · amplitude modulation · frequency modulation
digital signalsmechanical systems
Assemblies using motion and force
legacy systems · vinyl records · tape recordings · cathode ray tubes · AM radio
signal, digit, digital, signals, analog, digitize, digitized, digitizing, digitizer