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  1. Pulse Code Modulation
  2. Sampling
  3. Operator
  4. Oversampling
  5. Byte
  6. Bit
  7. Multiplex
  8. Laser
  9. Digital to Analog Converter
  10. Servo
  11. MP3
  12. Quantization
  13. Low Pass Filter
  14. Frame
  15. Word
  16. Format
  17. Flash Drive
  1. a Any kind of digital encoding of a signal. The most common type is where the voltage range is divided into a number of equal intervals.
  2. b The arrangement of bits, words and codes within a frame. Many are possible, and each electronic component in the digital domain reads only those frames that are (this) for that system.
  3. c A control system device that uses feedback of an output signal to compare and correct itself to a reference signal.
  4. d Converters transduce binary code into voltage fluctuations. Conversely, these converters transduce voltage variances to binary coded signals.
  5. e An 8 bit binary word.
  6. f The process by which the entire analog audible frequency spectrum is assessed or scanned 44,100 times per second and the information (the entire audio spectrum) converted to binary code.
  7. g When two or more signals are combined in such a way that they can later be decoded or separated.
  8. h A string of bits that together contain binary information
  9. i In a CD "read" device, a special light emitting diode (led). This single wavelength light beam is filtered and focused on a very discrete area of the track so that it can read the pits that are there.
  10. j A digital storage medium that connects to a computerized device via a serial interface (USB).
  11. k A compressed digital audio file, reduced in size according to psychoacoustical findings related to the limits of human audio perception. A generic term for any number of similar compression schemes.
  12. l Logic algorithms in Boolcan algebra. Combination commands that route digital signals to control complex operations.
  13. m The smallest recognizable complete sample of data.
  14. n A Binary digit. They are either 1 or 0; on or off, voltage or no voltage conditions.
  15. o The representation of a complete voltage span (level or intensity) in discrete, binary numbers. It is the digital representation of amplitude level.
  16. p An electronic device that allows only frequencies lower than a given cutoff point to pass. In the digital domain, any frequencies below 20 kHz.
  17. q In some CD players, samples of no voltage are created between actual samples so comparisons can be made among all samples, and a complete and accurate set of digits is the result, even if the original signal has been lost or degraded in some manner. This happens at either 4, 8 or 16 times per frame.