[sdiy] Is everything digital?

[The Old Crow]

  My only other comment on this topic is how I perceive digital vs. 
analog:

  discrete time domain = digital

  continuous time domain = analog

  In synthesizers, "digital" and "analog" are misnomers: BOTH are 
analogies of some other sound-creating process.  "Analog" (analogue) is 
the noun form of the concept describing a process as being similar to 
another process.  The human voice mimicking the chirps of a bird would be 
an analogy.  A VCO/VCF/VCA/EG setup to mimick the chirps of a bird would 
be an analogy.  A pile of DX operators (computed phase-accumulate-and-sine
-lookup-and-modulate) shoving a data stream through a DAC configured to 
mimic the chirps of a bird is an analogy.

  As computers to perform computations using continuously-variable
parameters were made, the term "analog computer" came along to describe 
the widget.  When the digital computer came about, algorithms had to be 
fashioned to characterize the previously continous varibles as discrete 
quantities.  Now we call them programs.

Crow
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